{"id":406883,"date":"2024-02-22T14:48:28","date_gmt":"2024-02-22T06:48:28","guid":{"rendered":"https:\/\/www.idc.net\/help\/406883\/"},"modified":"2024-02-22T14:48:28","modified_gmt":"2024-02-22T06:48:28","slug":"c%e8%ae%a1%e7%ae%97%e7%b4%a0%e6%95%b0%e5%ba%8f%e5%88%97%e6%b5%85%e8%b0%88","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/406883\/","title":{"rendered":"C#\u8ba1\u7b97\u7d20\u6570\u5e8f\u5217\u6d45\u8c08"},"content":{"rendered":"

\u5b66\u4e60C#\u8bed\u8a00\u65f6\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230C#\u8ba1\u7b97\u7d20\u6570\u5e8f\u5217\u95ee\u9898\uff0c\u8fd9\u91cc\u5c06\u4ecb\u7ecdC#\u8ba1\u7b97\u7d20\u6570\u5e8f\u5217\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n

\u7d20\u6570\u5bfb\u627e\u95ee\u9898\u7531\u6765\u5df2\u4e45\uff0c\u4e00\u76f4\u662f\u4e00\u4e9b\u6570\u5b66\u5bb6\u8ffd\u6c42\u7684\u76ee\u7684\u3002\u5173\u4e8e\u7d20\u6570\u7684\u5b9a\u4e49\u53ca\u6027\u8d28\uff0c\u6211\u5c31\u4e0d\u5728\u8fd9\u91cc\u591a\u53d9\u4e86\uff0c\u76f8\u4fe1\u5927\u5bb6\u90fd\u5bf9\u6b64\u4e86\u5982\u6307\u638c\u3002\u7d20\u6570\u7684\u5bfb\u627e\u601d\u8def\u6bd4\u8f83\u7684\u7b80\u5355\uff0c\u6839\u636e\u7d20\u6570\u7684\u6027\u8d28\uff08\u7d20\u6570\u5e94\u8be5\u4e0d\u80fd\u88ab\u9664\u4e861\u548c\u5b83\u81ea\u8eab\u7684\u5176\u4ed6\u6570\u6574\u9664\uff09\u6211\u4eec\u53ef\u4ee5\u4ece\u6700\u5c0f\u7684\u7d20\u65702\u5f00\u59cb\uff0c\u4e00\u76f4\u5230\u6bd4\u5b83\u5c0f1\u7684\u6570\u4e3a\u6b62\uff0c\u7528\u8fd9\u4e9b\u6570\u53bb\u6574\u9664\u5b83\uff0c\u5982\u679c\u5b83\u80fd\u88ab\u6574\u9664\u5219\u5b83\u5fc5\u5b9a\u4e0d\u662f\u7d20\u6570\uff0c\u8fd9\u662f\u5224\u65ad\u5355\u4e2a\u7d20\u6570\u7684\u65b9\u6cd5\uff08\u8fd9\u4e2a\u7b97\u6cd5\u601d\u60f3\u6700\u7b80\u5355\uff0c\u65f6\u95f4\u590d\u6742\u5ea6***\uff09\u3002\u5bf9\u4e8e\u5bfb\u627e\u6bd4\u67d0\u4e00\u4e2a\u7ed9\u5b9a\u7684\u6574\u6570\u503c\u5c0f\u7684\u6240\u6709\u7d20\u6570\u4e5f\u53ef\u4ee5\u91c7\u7528\u8fd9\u79cd\u65b9\u6cd5\uff0c\u4e0d\u8fc7\u6211\u4eec\u4f1a\u53d1\u73b0\uff0c\u91c7\u7528\u8fd9\u79cd\u5355\u4e2a\u5224\u65ad\u7684\u65b9\u6cd5\u6240\u8017\u7684\u65f6\u95f4\u6bd4\u8f83\u591a\u3002\u6bd4\u5982\u67e5\u627e\u4e0d\u5927\u4e8e10\u7684\u7d20\u6570\uff0c\u6211\u4eec\u5fc5\u987b\u4ece2\u5f00\u59cb\u4e00\u4e2a\u4e2a\u5224\u65ad\uff0c\u5171\u9700\u5224\u65ad9\u4e2a\u6570\uff0c\u4e8b\u5b9e\u4e0a\u6309\u7167\u6211\u4eec\u540e\u9762\u8bb2\u8ff0\u7684\u65b9\u6cd5\uff0c\u53ea\u9700\u5faa\u73af2\u6b21\u5c31\u53ef\u4ee5\u4e86\u3002\u56e0\u6b64\uff0c\u4e0b\u9762\u7684\u4e24\u79cd\u65b9\u6cd5\u90fd\u5c06\u57fa\u4e8e\u5220\u9664\u6cd5\u6765\u505a\u3002<\/p>\n

\u6211\u4eec\u6765\u770b\u770b\u5220\u9664\u6cd5\u7684\u601d\u60f3\uff1a<\/p>\n

1\uff0e\u5c06\u5c0f\u4e8e\u7ed9\u5b9a\u6574\u6570\u503cn\u7684\u6240\u6709\u6b63\u6574\u6570\u52a0\u5230\u4e00\u4e2a\u6570\u7ec4\u4e2d\uff1b<\/p>\n

2\uff0e\u5220\u9664\u80fd\u591f\u88ab\u4e00\u4e9b\u6574\u6570\u6574\u9664\u7684\u6570\uff1b<\/p>\n

3\uff0e\u6570\u7ec4\u4e2d\u9057\u7559\u7684\u5143\u7d20\u5c31\u662f***C#\u8ba1\u7b97\u7d20\u6570\u5e8f\u5217\u3002<\/p>\n

\n \n \n 
    \n  \n  \n  
  1. class prime  <\/span><\/span><\/li>\n  \n  \n  
  2. {  <\/span><\/li>\n  \n  \n  
  3. public static int[] PrimeList;  <\/span><\/li>\n  \n  \n  
  4. publicstatic void FindPrime(int n)  <\/span><\/li>\n  \n  \n  
  5. {  <\/span><\/li>\n  \n  \n  
  6. int[] IntList;  <\/span><\/li>\n  \n  \n  
  7. IntList<\/font>=new<\/font> int[n];  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  8. for (int p<\/font>=2<\/font>;p<<\/font><\/strong>=n;p++) IntList[p-1]=p;  <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  9. for (int p<\/font>=2<\/font>;p<Math.Sqrt<\/span><\/span><\/font><\/strong>(n);p++)  <\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  10. {  <\/span><\/li>\n  \n  \n  
  11. int j<\/font>=p<\/font>+1;  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  12. while (j<<\/font><\/strong>=n)  <\/span><\/span><\/span><\/li>\n  \n  \n  
  13. {  <\/span><\/li>\n  \n  \n  
  14. if ((IntList[j-1]!=0 ) && ((IntList[j-1]% p)==0) ) IntList[j-1]=0;  <\/span><\/li>\n  \n  \n  
  15. j<\/font>j<\/font>=j+1;  <\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  16. }  <\/span><\/li>\n  \n  \n  
  17. }  <\/span><\/li>\n  \n  \n  
  18. int i<\/font>=0<\/font>;  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  19. for (int p<\/font>=2<\/font>;p<<\/font><\/strong>=n;p++)  <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  20. {  <\/span><\/li>\n  \n  \n  
  21. if (IntList[p-1]!=0) i<\/font>i<\/font>=i+1;  <\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  22. }  <\/span><\/li>\n  \n  \n  
  23. PrimeList<\/font>=new<\/font> int[i];  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  24. i<\/font>=0<\/font>;  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  25. for (int p<\/font>=2<\/font>;p<<\/font><\/strong>=n;p++)  <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  26. {  <\/span><\/li>\n  \n  \n  
  27. if (IntList[p-1]!=0)  <\/span><\/li>\n  \n  \n  
  28. {  <\/span><\/li>\n  \n  \n  
  29. PrimeList[i]=IntList[p-1];  <\/span><\/li>\n  \n  \n  
  30. i<\/font>i<\/font>=i+1;  <\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
  31. }  <\/span><\/li>\n  \n  \n  
  32. }  <\/span><\/li>\n  \n  \n  
  33. }  <\/span><\/li>\n  \n  \n  
  34. } <\/span><\/li>\n \n \n <\/ol><\/pre>\n
    \u8fd9\u8fd9\u4e2a\u7b97\u6cd5\u4e2d\uff0c\u5220\u9664\u7684\u6570\u662f\u90a3\u4e9b\u88ab\u4ece2\u5f00\u59cb\u76f4\u5230n\u7684\u5e73\u65b9\u6839\u7684\u6574\u6570\u6574\u9664\u7684\u6570\u3002\u8fd9\u4e2a\u7b97\u6cd5\u6bd4\u8d77\u524d\u9762\u4ecb\u7ecd\u7684\u5355\u4e2a\u7d20\u6570\u7684\u5bfb\u627e\u65b9\u6cd5\u8981\u597d\uff0c\u5b83\u7684\u5faa\u73af\u6b21\u6570\u51cf\u5c11\u4e86\u4e00\u591a\u534a\uff0c\u4f46\u662f\u8fd9\u4e2a\u7b97\u6cd5\u8fd8\u4e0d\u662f\u6700\u7406\u60f3\u7684\uff1a<\/p>\n
    1\uff0e\u4f8b\u5982\uff0c6\u65e2\u80fd\u88ab2\u6574\u9664\uff0c\u4e5f\u80fd\u88ab3\u6574\u9664\uff0c\u90a3\u4e48\u5f53p\uff1d2\u65f6\uff0c6\u88ab\u5220\u6389\u4e86\u4e00\u6b21\uff1b\u5f53p\uff1d3\u65f6\uff0c6\u53c8\u88ab\u5220\u9664\u4e86\u4e00\u6b21\uff0c\u867d\u7136\u6309\u7167\u6211\u4eec\u8bbe\u5b9a\u7684\u7b97\u6cd5\u89c4\u5219\uff0c\u8fd9\u4e0d\u4f1a\u5bfc\u81f4\u51b2\u7a81\uff08\u901a\u8fc7\u5224\u65adIntList\u6570\u7ec4\u5143\u7d20\u662f\u5426\u4e3a0\uff0c\u82e5\u4e3a0\u5c31\u4e0d\u5fc5\u91cd\u590d\u5220\u9664\uff09\uff0c\u4f46\u662f\u8fd9\u4f1a\u4f7f\u5f97\u7b97\u6cd5\u7684\u6548\u7387\u4f4e\u4e0b\u3002<\/p>\n
    2\uff0e\u8fd8\u6709C#\u8ba1\u7b97\u7d20\u6570\u5e8f\u5217\u5143\u7d20\u4e2a\u6570\u65f6\uff0c\u6211\u4eec\u4e5f\u8d70\u4e86\u5f2f\u8def\u3002***\u6b65\uff0c\u6211\u4eec\u5148\u8ba1\u7b97\u51fa\u4e86\u6570\u7ec4\u5143\u7d20\u5927\u5c0f\uff0c\u7b2c\u4e8c\u6b65\u624d\u5f00\u59cb\u8d4b\u503c\uff0c\u4e8b\u5b9e\u4e0a\u8fd9\u4e24\u6b65\u6211\u4eec\u53ef\u4ee5\u51cf\u53bb\u8ba1\u7b97\u6570\u7ec4\u5927\u5c0f\u8fd9\u4e00\u6b65\uff0c\u53ef\u4ee5\u628a\u5b83\u653e\u5728\u524d\u9762\u5b8c\u6210\u3002<\/p>\n
    3\uff0e\u5df2\u7ecf\u88ab\u5220\u9664\u4e86\u7684\u5143\u7d20\uff0c\u4e5f\u5c31\u662f\u90a3\u4e9b\u4e0d\u662f\u7d20\u6570\u7684\u5143\u7d20\uff0c\u53ef\u4ee5\u4e0d\u7528\u62ff\u4ed6\u4eec\u53bb\u6574\u9664\u6574\u6570\uff0c\u4f8b\u59824\u4e0d\u7528\u62ff\u53bb\u6574\u96648\uff0c\u56e0\u4e3a\u80fd\u88ab4\u6574\u9664\u7684\u6570\u80af\u5b9a\u80fd\u88ab2\u6574\u9664\uff0c\u5df2\u7ecf\u5728\u524d\u9762\u5faa\u73af\u4e2d\u88ab\u5220\u9664\u4e86\u3002<\/p>\n
    \u57fa\u4e8e\u4e0a\u8ff0\u8003\u8651\uff0c\u6211\u4eec\u5f97\u5230\u4e86\u4e00\u4e2a\u6548\u7387\u66f4\u52a0\u9ad8\u7684\u7b97\u6cd5\uff1a<\/p>\n
    \n \n \n 
      \n  \n  \n  
    1. class primegood  <\/span><\/span><\/li>\n  \n  \n  
    2. {  <\/span><\/li>\n  \n  \n  
    3. public static int[] PrimeList;  <\/span><\/li>\n  \n  \n  
    4. public static void FindPrime(int n)  <\/span><\/li>\n  \n  \n  
    5. {  <\/span><\/li>\n  \n  \n  
    6. int[] IntList;  <\/span><\/li>\n  \n  \n  
    7. int len<\/font>=n-1;  <\/span><\/span><\/span><\/li>\n  \n  \n  
    8. IntList<\/font>=new<\/font> int[n];  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    9. for (int p<\/font>=2<\/font>;p<<\/font><\/strong>=n;p++) IntList[p-1]=p;  <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    10. for (int p<\/font>=2<\/font>;p<Math.Sqrt<\/span><\/span><\/font><\/strong>(n);p++)  <\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    11. {  <\/span><\/li>\n  \n  \n  
    12. if (IntList[p-1]==0) continue;  <\/span><\/li>\n  \n  \n  
    13. int j<\/font>=p<\/font>*p;  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    14. while (j<<\/font><\/strong>=n)  <\/span><\/span><\/span><\/li>\n  \n  \n  
    15. {  <\/span><\/li>\n  \n  \n  
    16. if (IntList[j-1]!=0 )  <\/span><\/li>\n  \n  \n  
    17. {  <\/span><\/li>\n  \n  \n  
    18. IntList[j-1]=0;  <\/span><\/li>\n  \n  \n  
    19. len<\/font>len<\/font>=len-1;  <\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    20. }  <\/span><\/li>\n  \n  \n  
    21. j<\/font>j<\/font>=j+p;  <\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    22. }  <\/span><\/li>\n  \n  \n  
    23. }  <\/span><\/li>\n  \n  \n  
    24. PrimeList<\/font>=new<\/font> int[len];  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    25. int i<\/font>=0<\/font>;  <\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    26. for (int p<\/font>=2<\/font>;p<<\/font><\/strong>=n;p++)  <\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    27. {  <\/span><\/li>\n  \n  \n  
    28. if (IntList[p-1]!=0)  <\/span><\/li>\n  \n  \n  
    29. {  <\/span><\/li>\n  \n  \n  
    30. PrimeList[i]=IntList[p-1];  <\/span><\/li>\n  \n  \n  
    31. i<\/font>i<\/font>=i+1;  <\/span><\/span><\/span><\/span><\/li>\n  \n  \n  
    32. }  <\/span><\/li>\n  \n  \n  
    33. }  <\/span><\/li>\n  \n  \n  
    34. }  <\/span><\/li>\n  \n  \n  
    35. } <\/span><\/li>\n \n \n <\/ol><\/pre>\n
      \u3010\u7f16\u8f91\u63a8\u8350\u3011<\/p>\n
        \n
      1. \u8fd0\u7528C#\u6570\u636e\u63d0\u4f9b\u8005<\/font><\/li>\n
      2. C#\u5141\u8bb8\u8fd0\u7b97\u7b26\u91cd\u8f7d\u5256\u6790<\/font><\/li>\n
      3. Java\u548cC#\u9876\u5c42\u58f0\u660e\u6982\u8ff0<\/font><\/li>\n
      4. C#\u5b8c\u5168\u9650\u5b9a\u540d\u7b80\u5355\u5206\u6790<\/font><\/li>\n
      5. C#\u6570\u636e\u7c7b\u578b\u7b80\u5355\u4ecb\u7ecd<\/font><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
        \u5b66\u4e60C#\u8bed\u8a00\u65f6\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230C#\u8ba1\u7b97\u7d20\u6570\u5e8f\u5217\u95ee\u9898\uff0c\u8fd9\u91cc\u5c06\u4ecb\u7ecdC#\u8ba1\u7b97\u7d20\u6570\u5e8f\u5217\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6cd5\u3002 \u7d20\u6570\u5bfb\u627e\u95ee\u9898\u7531\u6765\u5df2 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-406883","post","type-post","status-publish","format-standard","hentry","category-website"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/406883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=406883"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/406883\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=406883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=406883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=406883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}