{"id":1106,"date":"2018-04-17T19:50:16","date_gmt":"2018-04-17T11:50:16","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=1106"},"modified":"2019-06-25T20:09:16","modified_gmt":"2019-06-25T12:09:16","slug":"%e8%bf%ad%e4%bb%a3%e5%99%a8%e5%a4%b1%e6%95%88%e7%9a%84%e5%87%a0%e7%a7%8d%e6%83%85%e5%86%b5%e6%80%bb%e7%bb%93","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/1106","title":{"rendered":"\u8fed\u4ee3\u5668\u5931\u6548\u7684\u51e0\u79cd\u60c5\u51b5\u603b\u7ed3"},"content":{"rendered":"
\n

1. \u5bf9\u4e8e\u5e8f\u5217\u5f0f\u5bb9\u5668(\u5982vector,deque)\uff0c\u5e8f\u5217\u5f0f\u5bb9\u5668\u5c31\u662f\u6570\u7ec4\u5f0f\u5bb9\u5668\uff0c\u5220\u9664\u5f53\u524d\u7684iterator\u4f1a\u4f7f\u540e\u9762\u6240\u6709\u5143\u7d20\u7684iterator\u90fd\u5931\u6548\u3002\u8fd9\u662f\u56e0\u4e3avetor,deque\u4f7f\u7528\u4e86\u8fde\u7eed\u5206\u914d\u7684\u5185\u5b58\uff0c\u5220\u9664\u4e00\u4e2a\u5143\u7d20\u5bfc\u81f4\u540e\u9762\u6240\u6709\u7684\u5143\u7d20\u4f1a\u5411\u524d\u79fb\u52a8\u4e00\u4e2a\u4f4d\u7f6e\u3002\u6240\u4ee5\u4e0d\u80fd\u4f7f\u7528erase(iter++)\u7684\u65b9\u5f0f\uff0c\u8fd8\u597derase\u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u4e0b\u4e00\u4e2a\u6709\u6548\u7684iterator\u3002<\/p>\n<\/div>\n

\n
\n
\n
\n
\n

[cpp]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n

<\/embed><\/div>\n<\/div>\n<\/div>\n
    \n
  1. for<\/span>\u00a0(iter\u00a0=\u00a0cont.begin();\u00a0iter\u00a0!=\u00a0cont.end();)<\/li>\n
  2. {<\/li>\n
  3. \u00a0\u00a0\u00a0(*it)->doSomething();<\/li>\n
  4. \u00a0\u00a0\u00a0if<\/span>\u00a0(shouldDelete(*iter))<\/li>\n
  5. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0iter\u00a0=\u00a0cont.erase(iter);\u00a0\u00a0\/\/erase\u5220\u9664\u5143\u7d20\uff0c\u8fd4\u56de\u4e0b\u4e00\u4e2a\u8fed\u4ee3\u5668<\/span><\/li>\n
  6. \u00a0\u00a0\u00a0else<\/span><\/li>\n
  7. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0++iter;<\/li>\n
  8. }<\/li>\n<\/ol>\n<\/div>\n

    \u8fed\u4ee3\u5668\u5931\u6548\uff1a<\/p>\n

    \n
    \n
    \n

    [cpp]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n

    <\/embed><\/div>\n<\/div>\n<\/div>\n
      \n
    1. void<\/span>\u00a0vectorTest()<\/li>\n
    2. {<\/li>\n
    3. \u00a0\u00a0\u00a0\u00a0vector<int<\/span>>\u00a0container;<\/li>\n
    4. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(int<\/span>\u00a0i\u00a0=\u00a00;\u00a0i\u00a0<\u00a010;\u00a0i++)<\/li>\n
    5. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
    6. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0container.push_back(i);<\/li>\n
    7. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
    8. <\/li>\n
    9. \u00a0\u00a0\u00a0\u00a0vector<int<\/span>>::iterator\u00a0iter;<\/li>\n
    10. \u00a0\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(iter\u00a0=\u00a0container.begin();\u00a0iter\u00a0!=\u00a0container.end();\u00a0iter++)<\/li>\n
    11. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
    12. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(*iter\u00a0>\u00a03)<\/li>\n
    13. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0container.erase(iter);<\/li>\n
    14. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
    15. <\/li>\n
    16. \u00a0\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(iter\u00a0=\u00a0container.begin();\u00a0iter\u00a0!=\u00a0container.end();\u00a0iter++)<\/li>\n
    17. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
    18. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cout<<*iter<<endl;<\/li>\n
    19. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
    20. }<\/li>\n<\/ol>\n<\/div>\n

      \u62a5\u9519\u662f\uff1avectoriterator not incrementable.<\/p>\n

      \"\"<\/p>\n

      \"\"<\/p>\n

      \u8fed\u4ee3\u5668\u5728\u6267\u884c++\u64cd\u4f5c\u65f6\u62a5\u9519\uff01\u5df2\u7ecf\u5931\u6548\u7684\u8fed\u4ee3\u5668\u4e0d\u80fd\u518d\u8fdb\u884c\u81ea\u589e\u8fd0\u7b97\u4e86\u3002<\/p>\n

      \u5bf9\u4e8e\u5e8f\u5217\u5f0f\u5bb9\u5668\uff0c\u6bd4\u5982vector\uff0c\u5220\u9664\u5f53\u524d\u7684iterator\u4f1a\u4f7f\u540e\u9762\u6240\u6709\u5143\u7d20\u7684iterator\u90fd\u5931\u6548\u3002\u8fd9\u662f\u56e0\u4e3a\u987a\u5e8f\u5bb9\u5668\u5185\u5b58\u662f\u8fde\u7eed\u5206\u914d\uff08\u5206\u914d\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u5185\u5b58\uff09\uff0c\u5220\u9664\u4e00\u4e2a\u5143\u7d20\u5bfc\u81f4\u540e\u9762\u6240\u6709\u7684\u5143\u7d20\u4f1a\u5411\u524d\u79fb\u52a8\u4e00\u4e2a\u4f4d\u7f6e\u3002\uff08\u5220\u9664\u4e86\u4e00\u4e2a\u5143\u7d20\uff0c\u8be5\u5143\u7d20\u540e\u9762\u7684\u6240\u6709\u5143\u7d20\u90fd\u8981\u632a\u4f4d\u7f6e\uff0c\u6240\u4ee5\uff0citer++\uff0c\u5df2\u7ecf\u6307\u5411\u7684\u662f\u672a\u77e5\u5185\u5b58\uff09\u3002<\/p>\n

      \u4f46\u662ferase\u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u4e0b\u4e00\u4e2a\u6709\u6548\u7684iterator\u3002\u6240\u4ee5\u4ee3\u7801\u505a\u5982\u4e0b\u4fee\u6539\uff0c\u5c31OK\u4e86\u3002<\/p>\n

      \n
      \n
      \n

      [cpp]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n

      <\/embed><\/div>\n<\/div>\n<\/div>\n
        \n
      1. void<\/span>\u00a0vectorTest()<\/li>\n
      2. <\/li>\n
      3. \u00a0\u00a0\u00a0vector<int<\/span>>\u00a0container;<\/li>\n
      4. \u00a0\u00a0\u00a0for<\/span>\u00a0(int<\/span>\u00a0i\u00a0=\u00a00;\u00a0i\u00a0<\u00a010;\u00a0i++)<\/li>\n
      5. \u00a0\u00a0\u00a0{<\/li>\n
      6. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0container.push_back(i);<\/li>\n
      7. \u00a0\u00a0\u00a0}<\/li>\n
      8. <\/li>\n
      9. \u00a0\u00a0\u00a0vector<int<\/span>>::iterator\u00a0iter;<\/li>\n
      10. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(iter\u00a0=\u00a0container.begin();\u00a0iter\u00a0!=\u00a0container.end();)<\/li>\n
      11. \u00a0\u00a0\u00a0{<\/li>\n
      12. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(*iter\u00a0>\u00a03)\u00a0{<\/li>\n
      13. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0iter\u00a0=\u00a0container.erase(iter);<\/li>\n
      14. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
      15. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else<\/span>\u00a0{<\/li>\n
      16. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0iter\u00a0++;<\/li>\n
      17. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
      18. <\/li>\n
      19. \u00a0\u00a0\u00a0}<\/li>\n
      20. <\/li>\n
      21. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(iter\u00a0=\u00a0container.begin();\u00a0iter\u00a0!=\u00a0container.end();\u00a0iter++)<\/li>\n
      22. \u00a0\u00a0\u00a0{<\/li>\n
      23. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cout<<*iter<<endl;<\/li>\n
      24. \u00a0\u00a0\u00a0}<\/li>\n<\/ol>\n<\/div>\n

        \u603b\u7ed3\uff1avector\u662f\u4e00\u4e2a\u987a\u5e8f\u5bb9\u5668\uff0c\u5728\u5185\u5b58\u4e2d\u662f\u4e00\u5757\u8fde\u7eed\u7684\u5185\u5b58\uff0c\u5f53\u5220\u9664\u4e00\u4e2a\u5143\u7d20\u540e\uff0c\u5185\u5b58\u4e2d\u7684\u6570\u636e\u4f1a\u53d1\u751f\u79fb\u52a8\uff0c\u4ee5\u4fdd\u8bc1\u6570\u636e\u7684\u7d27\u51d1\u3002\u6240\u4ee5\u5220\u9664\u4e00\u4e2a\u6570\u636e\u540e\uff0c\u5176\u4ed6\u6570\u636e\u7684\u5730\u5740\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u4e4b\u524d\u83b7\u53d6\u7684\u8fed\u4ee3\u5668\u6839\u636e\u539f\u6709\u7684\u4fe1\u606f\u5c31\u8bbf\u95ee\u4e0d\u5230\u6b63\u786e\u7684\u6570\u636e\u3002<\/p>\n

        \u6240\u4ee5\u4e3a\u4e86\u9632\u6b62vector\u8fed\u4ee3\u5668\u5931\u6548\uff0c\u5e38\u7528\u5982\u4e0b\u65b9\u6cd5\uff1a<\/p>\n

        \n
        \n
        \n

        [cpp]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n

        <\/embed><\/div>\n<\/div>\n<\/div>\n
          \n
        1. for<\/span>\u00a0(iter\u00a0=\u00a0container.begin();\u00a0iter\u00a0!=\u00a0container.end();\u00a0)<\/li>\n
        2. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
        3. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(*iter\u00a0>\u00a03)<\/li>\n
        4. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0iter\u00a0=\u00a0container.erase(iter);\u00a0\u00a0\u00a0\u00a0\/\/erase\u7684\u8fd4\u56de\u503c\u662f\u5220\u9664\u5143\u7d20\u4e0b\u4e00\u4e2a\u5143\u7d20\u7684\u8fed\u4ee3\u5668<\/span><\/li>\n
        5. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else<\/span>{<\/li>\n
        6. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0iter++;<\/li>\n
        7. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
        8. \u00a0\u00a0\u00a0\u00a0}<\/li>\n<\/ol>\n<\/div>\n

          \u8fd9\u6837\u5220\u9664\u540eiter\u6307\u5411\u7684\u5143\u7d20\u540e\uff0c\u8fd4\u56de\u7684\u662f\u4e0b\u4e00\u4e2a\u5143\u7d20\u7684\u8fed\u4ee3\u5668\uff0c\u8fd9\u4e2a\u8fed\u4ee3\u5668\u662fvector\u5185\u5b58\u8c03\u6574\u8fc7\u540e\u65b0\u7684\u6709\u6548\u7684\u8fed\u4ee3\u5668\u3002<\/p>\n

           <\/p>\n

          1. \u5bf9\u4e8e\u5173\u8054\u5bb9\u5668(\u5982map, set,multimap,multiset)\uff0c\u5220\u9664\u5f53\u524d\u7684iterator\uff0c\u4ec5\u4ec5\u4f1a\u4f7f\u5f53\u524d\u7684iterator\u5931\u6548\uff0c\u53ea\u8981\u5728erase\u65f6\uff0c\u9012\u589e\u5f53\u524diterator\u5373\u53ef\u3002\u8fd9\u662f\u56e0\u4e3amap\u4e4b\u7c7b\u7684\u5bb9\u5668\uff0c\u4f7f\u7528\u4e86\u7ea2\u9ed1\u6811\u6765\u5b9e\u73b0\uff0c\u63d2\u5165\u3001\u5220\u9664\u4e00\u4e2a\u7ed3\u70b9\u4e0d\u4f1a\u5bf9\u5176\u4ed6\u7ed3\u70b9\u9020\u6210\u5f71\u54cd\u3002erase\u8fed\u4ee3\u5668\u53ea\u662f\u88ab\u5220\u5143\u7d20\u7684\u8fed\u4ee3\u5668\u5931\u6548\uff0c\u4f46\u662f\u8fd4\u56de\u503c\u4e3avoid\uff0c\u6240\u4ee5\u8981\u91c7\u7528erase(iter++)\u7684\u65b9\u5f0f\u5220\u9664\u8fed\u4ee3\u5668\u3002<\/p>\n

          \n
          \n
          \n

          [cpp]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n

          <\/embed><\/div>\n<\/div>\n<\/div>\n
            \n
          1. for<\/span>\u00a0(iter\u00a0=\u00a0cont.begin();\u00a0it\u00a0!=\u00a0cont.end();)<\/li>\n
          2. {<\/li>\n
          3. \u00a0\u00a0\u00a0(*iter)->doSomething();<\/li>\n
          4. \u00a0\u00a0\u00a0if<\/span>\u00a0(shouldDelete(*iter))<\/li>\n
          5. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cont.erase(iter++);<\/li>\n
          6. \u00a0\u00a0\u00a0else<\/span><\/li>\n
          7. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0++iter;<\/li>\n
          8. }<\/li>\n
          9. <\/li>\n
          10. void<\/span>\u00a0mapTest()<\/li>\n
          11. {<\/li>\n
          12. \u00a0\u00a0\u00a0\u00a0map<int<\/span>,\u00a0string>\u00a0dataMap;<\/li>\n
          13. <\/li>\n
          14. <\/li>\n
          15. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(int<\/span>\u00a0i\u00a0=\u00a00;\u00a0i\u00a0<\u00a0100;\u00a0i++)<\/li>\n
          16. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
          17. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0strValue\u00a0=\u00a0“Hello,\u00a0World”<\/span>;<\/li>\n
          18. <\/li>\n
          19. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0stringstream\u00a0ss;<\/li>\n
          20. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ss<<i;<\/li>\n
          21. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0tmpStrCount;<\/li>\n
          22. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ss>>tmpStrCount;<\/li>\n
          23. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0strValue\u00a0+=\u00a0tmpStrCount;<\/li>\n
          24. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dataMap.insert(make_pair(i,\u00a0strValue));<\/li>\n
          25. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
          26. <\/li>\n
          27. \u00a0\u00a0\u00a0\u00a0cout<<“MAP\u5143\u7d20\u5185\u5bb9\u4e3a\uff1a”<\/span><<endl;<\/li>\n
          28. \u00a0\u00a0\u00a0\u00a0\u00a0map<int<\/span>,\u00a0string>::iterator\u00a0iter;<\/li>\n
          29. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(iter\u00a0=\u00a0dataMap.begin();\u00a0iter\u00a0!=\u00a0dataMap.end();\u00a0iter++)<\/li>\n
          30. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
          31. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int<\/span>\u00a0nKey\u00a0=\u00a0iter->first;<\/li>\n
          32. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0strValue\u00a0=\u00a0iter->second;<\/li>\n
          33. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cout<<strValue<<endl;<\/li>\n
          34. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
          35. <\/li>\n
          36. \u00a0\u00a0\u00a0\u00a0cout<<“\u5185\u5bb9\u5f00\u59cb\u5220\u9664\uff1a”<\/span><<endl;<\/li>\n
          37. \u00a0\u00a0\u00a0\u00a0\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\u64e6\u9664\u64cd\u4f5c\u5f15\u53d1\u8fed\u4ee3\u5668\u5931\u6548<\/span><\/li>\n
          38. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(iter\u00a0=\u00a0dataMap.begin();\u00a0iter\u00a0!=\u00a0dataMap.end();iter++)<\/li>\n
          39. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
          40. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int<\/span>\u00a0nKey\u00a0=\u00a0iter->first;<\/li>\n
          41. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0strValue\u00a0=\u00a0iter->second;<\/li>\n
          42. <\/li>\n
          43. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(nKey\u00a0%\u00a02\u00a0==\u00a00)<\/li>\n
          44. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{<\/li>\n
          45. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dataMap.erase(iter);<\/li>\n
          46. <\/li>\n
          47. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
          48. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/*\u00a0cout<<iter->second<<endl;*\/<\/span><\/li>\n
          49. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
          50. }<\/li>\n<\/ol>\n<\/div>\n

            \u51fa\u9519\uff1a<\/p>\n

            \"\"<\/p>\n

            \u89e3\u6790\uff1adataMap.erase(iter)\u4e4b\u540e,iter\u5c31\u5df2\u7ecf\u5931\u6548\u4e86\uff0c\u6240\u4ee5iter\u65e0\u6cd5\u81ea\u589e\uff0c\u5373iter++\u5c31\u4f1a\u51fabug.\u89e3\u51b3\u65b9\u6848\uff0c\u5c31\u662f\u5728iter\u5931\u6548\u4e4b\u524d\uff0c\u5148\u81ea\u589e\u3002<\/p>\n

            \n
            \n
            \n

            [cpp]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n

            <\/embed><\/div>\n<\/div>\n<\/div>\n
              \n
            1. void<\/span>\u00a0mapTest()<\/li>\n
            2. {<\/li>\n
            3. \u00a0\u00a0\u00a0\u00a0map<int<\/span>,\u00a0string>\u00a0dataMap;<\/li>\n
            4. <\/li>\n
            5. <\/li>\n
            6. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(int<\/span>\u00a0i\u00a0=\u00a00;\u00a0i\u00a0<\u00a0100;\u00a0i++)<\/li>\n
            7. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
            8. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0strValue\u00a0=\u00a0“Hello,\u00a0World”<\/span>;<\/li>\n
            9. <\/li>\n
            10. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0stringstream\u00a0ss;<\/li>\n
            11. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ss<<i;<\/li>\n
            12. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0tmpStrCount;<\/li>\n
            13. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ss>>tmpStrCount;<\/li>\n
            14. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0strValue\u00a0+=\u00a0tmpStrCount;<\/li>\n
            15. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dataMap.insert(make_pair(i,\u00a0strValue));<\/li>\n
            16. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
            17. <\/li>\n
            18. \u00a0\u00a0\u00a0\u00a0cout<<“MAP\u5143\u7d20\u5185\u5bb9\u4e3a\uff1a”<\/span><<endl;<\/li>\n
            19. \u00a0\u00a0\u00a0\u00a0\u00a0map<int<\/span>,\u00a0string>::iterator\u00a0iter;<\/li>\n
            20. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(iter\u00a0=\u00a0dataMap.begin();\u00a0iter\u00a0!=\u00a0dataMap.end();\u00a0iter++)<\/li>\n
            21. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
            22. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int<\/span>\u00a0nKey\u00a0=\u00a0iter->first;<\/li>\n
            23. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0strValue\u00a0=\u00a0iter->second;<\/li>\n
            24. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0cout<<strValue<<endl;<\/li>\n
            25. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
            26. <\/li>\n
            27. \u00a0\u00a0\u00a0\u00a0cout<<“\u5185\u5bb9\u5f00\u59cb\u5220\u9664\uff1a”<\/span><<endl;<\/li>\n
            28. \u00a0\u00a0\u00a0\u00a0\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\u64e6\u9664\u64cd\u4f5c\u5f15\u53d1\u8fed\u4ee3\u5668\u5931\u6548<\/span><\/li>\n
            29. \u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0(iter\u00a0=\u00a0dataMap.begin();\u00a0iter\u00a0!=\u00a0dataMap.end();)<\/li>\n
            30. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
            31. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int<\/span>\u00a0nKey\u00a0=\u00a0iter->first;<\/li>\n
            32. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0strValue\u00a0=\u00a0iter->second;<\/li>\n
            33. <\/li>\n
            34. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(nKey\u00a0%\u00a02\u00a0==\u00a00)<\/li>\n
            35. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{<\/li>\n
            36. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dataMap.erase(iter++);<\/li>\n
            37. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0auto\u00a0a\u00a0=\u00a0iter;<\/li>\n
            38. <\/li>\n
            39. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
            40. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else<\/span>\u00a0{<\/li>\n
            41. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0iter\u00a0++;<\/li>\n
            42. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
            43. \u00a0\u00a0\u00a0\u00a0}<\/li>\n
            44. }<\/li>\n<\/ol>\n<\/div>\n

              \u89e3\u6790\uff1adataMap.erase(iter++);\u8fd9\u53e5\u8bdd\u5206\u4e09\u6b65\u8d70\uff0c\u5148\u628aiter\u4f20\u503c\u5230erase\u91cc\u9762\uff0c\u7136\u540eiter\u81ea\u589e\uff0c\u7136\u540e\u6267\u884cerase,\u6240\u4ee5iter\u5728\u5931\u6548\u524d\u5df2\u7ecf\u81ea\u589e\u4e86\u3002<\/p>\n

              map\u662f\u5173\u8054\u5bb9\u5668\uff0c\u4ee5\u7ea2\u9ed1\u6811\u6216\u8005\u5e73\u8861\u4e8c\u53c9\u6811\u7ec4\u7ec7\u6570\u636e\uff0c\u867d\u7136\u5220\u9664\u4e86\u4e00\u4e2a\u5143\u7d20\uff0c\u6574\u68f5\u6811\u4e5f\u4f1a\u8c03\u6574\uff0c\u4ee5\u7b26\u5408\u7ea2\u9ed1\u6811\u6216\u8005\u4e8c\u53c9\u6811\u7684\u89c4\u8303\uff0c\u4f46\u662f\u5355\u4e2a\u8282\u70b9\u5728\u5185\u5b58\u4e2d\u7684\u5730\u5740\u6ca1\u6709\u53d8\u5316\uff0c\u53d8\u5316\u7684\u662f\u5404\u8282\u70b9\u4e4b\u95f4\u7684\u6307\u5411\u5173\u7cfb\u3002<\/p>\n

              \u6240\u4ee5\u5728map\u4e2d\u4e3a\u4e86\u9632\u6b62\u8fed\u4ee3\u5668\u5931\u6548\uff0c\u5728\u6709\u5220\u9664\u64cd\u4f5c\u65f6\uff0c\u5e38\u7528\u5982\u4e0b\u65b9\u6cd5\uff1a<\/p>\n

              \n
              \n
              \n

              [cpp]<\/b>\u00a0view plain<\/a>\u00a0copy<\/a><\/span><\/p>\n

              <\/embed><\/div>\n<\/div>\n<\/div>\n
                \n
              1. for<\/span>\u00a0(iter\u00a0=\u00a0dataMap.begin();\u00a0iter\u00a0!=\u00a0dataMap.end();\u00a0)<\/li>\n
              2. \u00a0\u00a0\u00a0\u00a0{<\/li>\n
              3. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int<\/span>\u00a0nKey\u00a0=\u00a0iter->first;<\/li>\n
              4. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0strValue\u00a0=\u00a0iter->second;<\/li>\n
              5. <\/li>\n
              6. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(nKey\u00a0%\u00a02\u00a0==\u00a00)<\/li>\n
              7. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{<\/li>\n
              8. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0map<int<\/span>,\u00a0string>::iterator\u00a0tmpIter\u00a0=\u00a0iter;<\/li>\n
              9. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0iter++;<\/li>\n
              10. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dataMap.erase(tmpIter);<\/li>\n
              11. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/dataMap.erase(iter++)\u00a0\u8fd9\u6837\u4e5f\u884c<\/span><\/li>\n
              12. <\/li>\n
              13. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}else<\/span><\/li>\n
              14. \u00a0\u00a0\u00a0\u00a0\u00a0{<\/li>\n
              15. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0iter++;<\/li>\n
              16. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}<\/li>\n
              17. \u00a0\u00a0\u00a0}<\/li>\n<\/ol>\n<\/div>\n

                map<int, string>::iterator tmpIter =iter; iter++;<\/p>\n

                dataMap.erase(tmpIter);<\/p>\n

                \u8fd9\u51e0\u53e5\u7684\u610f\u601d\u662f,\u5148\u4fdd\u7559\u8981\u5220\u9664\u7684\u8282\u70b9\u8fed\u4ee3\u5668\uff0c\u518d\u8ba9iter\u5411\u4e0b\u4e00\u4e2a\u6709\u610f\u4e49\u7684\u8282\u70b9\uff0c\u7136\u540e\u5220\u9664\u8282\u70b9\u3002<\/p>\n

                \u6240\u4ee5\u8fd9\u4e2a\u64cd\u4f5c\u7ed3\u675f\u540eiter\u6307\u5411\u7684\u662f\u4e0b\u4e00\u4e2a\u6709\u610f\u4e49\u7684\u8282\u70b9\uff0c\u6ca1\u6709\u5931\u6548\u3002<\/p>\n

                \u5176\u5b9e\u8fd9\u4e09\u53e5\u8bdd\u53ef\u4ee5\u7528\u5728\u4e00\u53e5\u8bdd\u4ee3\u66ff\uff0c\u5c31\u662fdataMap.erase(iter++);<\/p>\n

                \u89e3\u91ca\u662f\u5148\u8ba9iter\u6307\u5411\u4e0b\u4e00\u4e2a\u6709\u6548\u7684\u8282\u70b9\uff0c\u4f46\u662f\u8fd4\u56de\u7ed9erase\u51fd\u6570\u7684\u662f\u539f\u6765\u7684iter\u526f\u672c\u3002\u8fd9\u4e2a\u53ef\u80fd\u8ddf++\u8fd9\u4e2a\u64cd\u4f5c\u7684\u672c\u8eab\u8bed\u6cd5\u76f8\u5173\u3002<\/p>\n

                \u4f46\u662f\u529f\u80fd\u8ddf\u4e0a\u9762\u662f\u4e00\u6837\u7684\u3002<\/p>\n

                 <\/p>\n

                \u603b\u7ed3\uff1a\u8fed\u4ee3\u5668\u5931\u6548\u5206\u4e09\u79cd\u60c5\u51b5\u8003\u8651\uff0c\u4e5f\u662f\u975e\u4e09\u79cd\u6570\u636e\u7ed3\u6784\u8003\u8651\uff0c\u5206\u522b\u4e3a\u6570\u7ec4\u578b\uff0c\u94fe\u8868\u578b\uff0c\u6811\u578b\u6570\u636e\u7ed3\u6784\u3002<\/p>\n

                \u6570\u7ec4\u578b\u6570\u636e\u7ed3\u6784\uff1a\u8be5\u6570\u636e\u7ed3\u6784\u7684\u5143\u7d20\u662f\u5206\u914d\u5728\u8fde\u7eed\u7684\u5185\u5b58\u4e2d\uff0cinsert\u548cerase\u64cd\u4f5c\uff0c\u90fd\u4f1a\u4f7f\u5f97\u5220\u9664\u70b9\u548c\u63d2\u5165\u70b9\u4e4b\u540e\u7684\u5143\u7d20\u632a\u4f4d\u7f6e\uff0c\u6240\u4ee5\uff0c\u63d2\u5165\u70b9\u548c\u5220\u9664\u6389\u4e4b\u540e\u7684\u8fed\u4ee3\u5668\u5168\u90e8\u5931\u6548\uff0c\u4e5f\u5c31\u662f\u8bf4insert(*iter)(\u6216erase(*iter))\uff0c\u7136\u540e\u5728iter++\uff0c\u662f\u6ca1\u6709\u610f\u4e49\u7684\u3002\u89e3\u51b3\u65b9\u6cd5\uff1aerase(*iter)\u7684\u8fd4\u56de\u503c\u662f\u4e0b\u4e00\u4e2a\u6709\u6548\u8fed\u4ee3\u5668\u7684\u503c\u3002\u00a0iter =cont.erase(iter);<\/p>\n

                \u94fe\u8868\u578b\u6570\u636e\u7ed3\u6784\uff1a\u5bf9\u4e8elist\u578b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f7f\u7528\u4e86\u4e0d\u8fde\u7eed\u5206\u914d\u7684\u5185\u5b58\uff0c\u5220\u9664\u8fd0\u7b97\u4f7f\u6307\u5411\u5220\u9664\u4f4d\u7f6e\u7684\u8fed\u4ee3\u5668\u5931\u6548\uff0c\u4f46\u662f\u4e0d\u4f1a\u5931\u6548\u5176\u4ed6\u8fed\u4ee3\u5668.\u89e3\u51b3\u529e\u6cd5\u4e24\u79cd\uff0cerase(*iter)\u4f1a\u8fd4\u56de\u4e0b\u4e00\u4e2a\u6709\u6548\u8fed\u4ee3\u5668\u7684\u503c\uff0c\u6216\u8005erase(iter++).<\/p>\n

                \u6811\u5f62\u6570\u636e\u7ed3\u6784\uff1a\u00a0\u4f7f\u7528\u7ea2\u9ed1\u6811\u6765\u5b58\u50a8\u6570\u636e\uff0c\u63d2\u5165\u4e0d\u4f1a\u4f7f\u5f97\u4efb\u4f55\u8fed\u4ee3\u5668\u5931\u6548\uff1b\u5220\u9664\u8fd0\u7b97\u4f7f\u6307\u5411\u5220\u9664\u4f4d\u7f6e\u7684\u8fed\u4ee3\u5668\u5931\u6548\uff0c\u4f46\u662f\u4e0d\u4f1a\u5931\u6548\u5176\u4ed6\u8fed\u4ee3\u5668.erase\u8fed\u4ee3\u5668\u53ea\u662f\u88ab\u5220\u5143\u7d20\u7684\u8fed\u4ee3\u5668\u5931\u6548\uff0c\u4f46\u662f\u8fd4\u56de\u503c\u4e3avoid\uff0c\u6240\u4ee5\u8981\u91c7\u7528erase(iter++)\u7684\u65b9\u5f0f\u5220\u9664\u8fed\u4ee3\u5668\u3002<\/p>\n

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                1. \u5bf9\u4e8e\u5e8f\u5217\u5f0f\u5bb9\u5668(\u5982vector,d<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[118],"class_list":["post-1106","post","type-post","status-publish","format-standard","hentry","tag-02-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=1106"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1106\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=1106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=1106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=1106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}