{"id":299418,"date":"2024-05-20T17:17:06","date_gmt":"2024-05-20T09:17:06","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/299418.html"},"modified":"2024-05-20T17:17:20","modified_gmt":"2024-05-20T09:17:20","slug":"c%ef%bc%8b%ef%bc%8b-%e5%a6%82%e4%bd%95%e7%bc%96%e7%a8%8b%e6%89%93%e5%8d%b0%e5%87%ba%e4%b9%9d%e4%b9%9d%e4%b9%98%e6%b3%95%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/299418.html","title":{"rendered":"c\uff0b\uff0b \u5982\u4f55\u7f16\u7a0b\u6253\u5370\u51fa\u4e5d\u4e5d\u4e58\u6cd5\u8868"},"content":{"rendered":"

\"c\uff0b\uff0b<\/p>\n

\u5728C++\u4e2d\uff0c\u7f16\u7a0b\u6253\u5370\u51fa\u4e5d\u4e5d\u4e58\u6cd5\u8868\u662f\u4e00\u9879\u57fa\u7840\u800c\u53c8\u7ecf\u5178\u7684\u7ec3\u4e60\u4efb\u52a1\u3002\u8fd9\u4e0d\u4ec5\u6d89\u53ca\u5230\u4e86\u5faa\u73af\u63a7\u5236\u7ed3\u6784\u7684\u4f7f\u7528\uff0c\u800c\u4e14\u8fd8\u5305\u62ec\u4e86\u683c\u5f0f\u5316\u8f93\u51fa\u3002\u6838\u5fc3\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u3001\u683c\u5f0f\u5316\u8f93\u51fa\u3001\u63a7\u5236\u8bed\u53e5\u7684\u4f7f\u7528<\/strong>\uff0c\u5176\u4e2d\uff0c\u5d4c\u5957\u5faa\u73af<\/strong>\u662f\u5b9e\u73b0\u4e5d\u4e5d\u4e58\u6cd5\u8868\u7684\u6700\u76f4\u63a5\u548c\u6838\u5fc3\u7684\u624b\u6bb5\u3002\u901a\u8fc7\u5916\u5c42\u5faa\u73af\u786e\u5b9a\u4e58\u6cd5\u8868\u7684\u884c\uff0c\u5185\u5c42\u5faa\u73af\u5219\u8d1f\u8d23\u5177\u4f53\u6bcf\u4e00\u884c\u4e2d\u6bcf\u4e00\u5217\u7684\u503c\u7684\u8ba1\u7b97\u548c\u8f93\u51fa\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5d4c\u5957\u5faa\u73af\u7684\u5e94\u7528<\/h3>\n<\/p>\n

\u4e5d\u4e5d\u4e58\u6cd5\u8868\u53ef\u901a\u8fc7\u4e24\u5c42\u5faa\u73af\u5b9e\u73b0\uff1a\u5916\u5c42\u5faa\u73af\u904d\u53861\u52309\uff0c\u8868\u793a\u4e58\u6570\uff1b\u5185\u5c42\u5faa\u73af\u904d\u53861\u5230\u5916\u5c42\u5faa\u73af\u7684\u5f53\u524d\u503c\uff0c\u8868\u793a\u88ab\u4e58\u6570\u3002\u8fd9\u79cd\u7ed3\u6784\u4f7f\u5f97\u7a0b\u5e8f\u80fd\u591f\u9010\u884c\u6253\u5370\u51fa\u4e5d\u4e5d\u4e58\u6cd5\u8868\u7684\u7ed3\u679c\u3002<\/p>\n<\/p>\n

\u5728\u5b9e\u73b0\u65f6\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u8bbe\u7f6e\u5916\u5c42\u5faa\u73af\uff0c\u8ba9\u5b83\u4ece1\u904d\u5386\u52309\uff0c\u8fd9\u4f1a\u4ee3\u8868\u4e58\u6cd5\u8868\u7684\u6bcf\u4e00\u884c\u3002\u5bf9\u4e8e\u6bcf\u4e00\u884c\u6765\u8bf4\uff0c\u6211\u4eec\u518d\u8bbe\u7f6e\u4e00\u4e2a\u5185\u5c42\u5faa\u73af\uff0c\u5b83\u4ece1\u904d\u5386\u5230\u4e0e\u5916\u5c42\u5faa\u73af\u7684\u5f53\u524d\u503c\u76f8\u7b49\uff0c\u8fd9\u6837\u5c31\u80fd\u786e\u4fdd\u4e58\u6cd5\u8868\u4e2d\u6bcf\u884c\u7684\u8f93\u51fa\u90fd\u662f\u5f53\u524d\u6570\u5b57\u4e0e\u524d\u9762\u6240\u6709\u6570\u5b57\u7684\u4e58\u79ef\u3002<\/p>\n<\/p>\n

for(int i = 1; i <= 9; i++) {<\/p>\n
    for(int j = 1; j <= i; j++) {<\/p>\n
        cout << j << "*" << i << "=" << i*j << "\\t";  \/\/ \u4f7f\u7528\u5236\u8868\u7b26\\t\u8fdb\u884c\u683c\u5f0f\u5316\u8f93\u51fa<\/p>\n
    }<\/p>\n
    cout << endl; \/\/ \u6bcf\u5b8c\u6210\u4e00\u884c\u8f93\u51fa\u540e\u6362\u884c<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u683c\u5f0f\u5316\u8f93\u51fa\u7684\u91cd\u8981\u6027<\/h3>\n<\/p>\n
\u5728\u6253\u5370\u4e5d\u4e5d\u4e58\u6cd5\u8868\u65f6\uff0c\u9664\u4e86\u8ba1\u7b97\u51c6\u786e\u4e4b\u5916\uff0c\u5982\u4f55\u7f8e\u89c2\u5730\u663e\u793a\u4e5f\u662f\u4e00\u4e2a\u5173\u952e\u70b9\u3002C++\u63d0\u4f9b\u4e86\u591a\u79cd\u8f93\u51fa\u683c\u5f0f\u5316\u7684\u65b9\u6cd5\uff0c\u4f8b\u5982\u8c03\u6574\u5bbd\u5ea6\u3001\u5de6\u53f3\u5bf9\u9f50\u7b49\uff0c\u5176\u4e2d\u5236\u8868\u7b26\u7684\u4f7f\u7528\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5728\u8f93\u51fa\u65f6\u4fdd\u6301\u5404\u5217\u4e4b\u95f4\u7684\u5bf9\u9f50\u3002<\/p>\n<\/p>\n
\u4e3a\u4e86\u4f7f\u8f93\u51fa\u7684\u4e5d\u4e5d\u4e58\u6cd5\u8868\u66f4\u52a0\u7f8e\u89c2\uff0c\u6211\u4eec\u901a\u5e38\u4f1a\u4f7f\u7528\\t<\/code>\uff08\u5236\u8868\u7b26\uff09\u6765\u786e\u4fdd\u6bcf\u5217\u4e4b\u95f4\u6709\u8db3\u591f\u7684\u95f4\u9694\uff0c\u5e76\u4e14\u5f53\u6570\u5b57\u53d8\u5316\u65f6\uff0c\u8f93\u51fa\u7684\u5217\u80fd\u591f\u5bf9\u9f50\u3002\u6b64\u5916\uff0c\u5229\u7528setw<\/code>\u51fd\u6570\u53ef\u4ee5\u8bbe\u7f6e\u8f93\u51fa\u7684\u5bbd\u5ea6\uff0c\u8fdb\u4e00\u6b65\u7f8e\u5316\u8f93\u51fa\u683c\u5f0f\u3002<\/p>\n<\/p>\n
#include<iostream><\/p>\n
#include<iomanip> \/\/ \u5f15\u5165\u4ee5\u4f7f\u7528setw<\/p>\n
using namespace std;<\/p>\n
int mAI<\/a>n() {<\/p>\n
    for(int i = 1; i <= 9; i++) {<\/p>\n
        for(int j = 1; j <= i; j++) {<\/p>\n
            cout << setw(2) << j << "*" << setw(2) << i << "=" << setw(3) << i*j << "   "; \/\/ \u8bbe\u7f6e\u5bbd\u5ea6\u4fdd\u6301\u7f8e\u89c2<\/p>\n
        }<\/p>\n
        cout << endl;<\/p>\n
    }<\/p>\n
    return 0;<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u63a7\u5236\u8bed\u53e5\u7684\u7075\u6d3b\u8fd0\u7528<\/h3>\n<\/p>\n
\u5728\u7f16\u5199C++\u7a0b\u5e8f\u65f6\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u6839\u636e\u6761\u4ef6\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801\uff0c\u8fd9\u6b63\u662f\u901a\u8fc7\u63a7\u5236\u8bed\u53e5\u5b9e\u73b0\u7684\u3002\u5728\u6253\u5370\u4e5d\u4e5d\u4e58\u6cd5\u8868\u7684\u8fc7\u7a0b\u4e2d\uff0c\u867d\u7136\u63a7\u5236\u8bed\u53e5\u7684\u4f7f\u7528\u5e76\u4e0d\u590d\u6742\uff0c\u4f46\u5408\u7406\u8fd0\u7528\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u4e25\u8c28\u548c\u53ef\u8bfb\u3002<\/p>\n<\/p>\n
\u4e00\u4e2a\u7ecf\u5178\u7684\u60c5\u51b5\u662f\uff0c\u6211\u4eec\u53ef\u80fd\u60f3\u6839\u636e\u7528\u6237\u7684\u8f93\u5165\u6765\u51b3\u5b9a\u662f\u5426\u7ee7\u7eed\u6253\u5370\u4e0b\u4e00\u884c\u3002\u8fd9\u65f6\uff0c\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u7b80\u5355\u7684\u7528\u6237\u4ea4\u4e92\u73af\u8282\uff0c\u8be2\u95ee\u7528\u6237\u662f\u5426\u60f3\u7ee7\u7eed\u770b\u5230\u4e0b\u4e00\u884c\uff0c\u8fd9\u53ef\u4ee5\u901a\u8fc7if<\/code>\u8bed\u53e5\u548c\u5faa\u73af\u63a7\u5236\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n
\u56db\u3001\u6269\u5c55\u4e60\u9898\u4e0e\u5b9e\u8df5<\/h3>\n<\/p>\n
\u7406\u89e3\u5e76\u638c\u63e1\u6253\u5370\u4e5d\u4e5d\u4e58\u6cd5\u8868\u4e4b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5c1d\u8bd5\u4e00\u4e9b\u6269\u5c55\u7ec3\u4e60\uff0c\u6bd4\u5982\u7f16\u5199\u7a0b\u5e8f\u751f\u6210\u53cd\u5411\u7684\u4e5d\u4e5d\u4e58\u6cd5\u8868\uff0c\u6216\u662f\u53ea\u6253\u5370\u5176\u4e2d\u7684\u4e00\u90e8\u5206\uff08\u5982\u5947\u6570\u884c\uff09\uff0c\u8fd9\u4e9b\u6269\u5c55\u4efb\u52a1\u4f1a\u4fc3\u4f7f\u6211\u4eec\u66f4\u52a0\u7075\u6d3b\u5730\u8fd0\u7528\u5faa\u73af\u548c\u63a7\u5236\u8bed\u53e5\uff0c\u52a0\u6df1\u5bf9\u5176\u63a7\u5236\u903b\u8f91\u7684\u7406\u89e3\u3002<\/p>\n<\/p>\n
\u53e6\u5916\uff0c\u63a2\u7d22C++\u4e2d\u4e0d\u540c\u7248\u672c\uff08\u5982C++11\u3001C++14\u7b49\uff09\u65b0\u589e\u7684\u8bed\u8a00\u7279\u6027\uff0c\u4f8b\u5982\u57fa\u4e8e\u8303\u56f4\u7684for\u5faa\u73af\uff0c\u53ef\u4ee5\u63d0\u5347\u6211\u4eec\u7f16\u7a0b\u7684\u6548\u7387\u548c\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002\u901a\u8fc7\u5c06\u8fd9\u4e9b\u73b0\u4ee3C++\u7279\u6027\u5e94\u7528\u4e8e\u7ecf\u5178\u7684\u95ee\u9898\uff0c\u4e0d\u4ec5\u80fd\u5de9\u56fa\u57fa\u672c\u6982\u5ff5\uff0c\u8fd8\u80fd\u63d0\u9ad8\u89e3\u51b3\u95ee\u9898\u7684\u80fd\u529b\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
Q1: C++\u5982\u4f55\u7f16\u7a0b\u5b9e\u73b0\u6253\u5370\u4e5d\u4e5d\u4e58\u6cd5\u8868\uff1f<\/strong><\/p>\n
A1: \u8981\u5728C++\u4e2d\u7f16\u7a0b\u6253\u5370\u4e5d\u4e5d\u4e58\u6cd5\u8868\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u6765\u5b9e\u73b0\u3002\u4f7f\u7528\u4e24\u4e2a\u5d4c\u5957\u7684for\u5faa\u73af\uff0c\u5916\u5c42\u5faa\u73af\u7528\u4e8e\u63a7\u5236\u884c\u6570\uff0c\u5185\u5c42\u5faa\u73af\u7528\u4e8e\u63a7\u5236\u6bcf\u884c\u7684\u5217\u6570\u3002\u5177\u4f53\u7684\u4ee3\u7801\u53ef\u4ee5\u50cf\u4e0b\u9762\u8fd9\u6837\uff1a<\/p>\n
#include <iostream>\nusing namespace std;\n\nint main() {\n  for (int i = 1; i <= 9; ++i) {\n    for (int j = 1; j <= i; ++j) {\n      cout << j << " * " << i << " = " << j * i << "  ";\n    }\n    cout << endl;\n  }\n  return 0;\n}\n<\/code><\/pre>\n
Q2: \u6709\u6ca1\u6709\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u5728C++\u4e2d\u6253\u5370\u4e5d\u4e5d\u4e58\u6cd5\u8868\uff1f<\/strong><\/p>\n
A2: \u662f\u7684\uff0c\u8fd8\u6709\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u5728C++\u4e2d\u6253\u5370\u4e5d\u4e5d\u4e58\u6cd5\u8868\u3002\u9664\u4e86\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u4e4b\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u4f7f\u7528\u9012\u5f52\u6765\u5b9e\u73b0\u3002\u9012\u5f52\u662f\u4e00\u79cd\u5c06\u95ee\u9898\u5206\u89e3\u6210\u66f4\u5c0f\u7684\u5b50\u95ee\u9898\u7684\u65b9\u6cd5\uff0c\u76f4\u5230\u8fbe\u5230\u57fa\u672c\u60c5\u51b5\u7684\u89e3\u51b3\u65b9\u6848\u3002\u5177\u4f53\u7684\u4ee3\u7801\u53ef\u4ee5\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
#include <iostream>\nusing namespace std;\n\nvoid printMultiplication(int num, int curr) {\n  if (curr > num) {\n    return;\n  }\n  \n  cout << curr << " * " << num << " = " << curr * num << "  ";\n  printMultiplication(num, curr + 1);\n}\n\nvoid printTimesTable(int num) {\n  if (num < 1) {\n    return;\n  }\n  \n  printTimesTable(num - 1);\n  printMultiplication(num, 1);\n  cout << endl;\n}\n\nint main() {\n  int n = 9;\n  printTimesTable(n);\n  return 0;\n}\n<\/code><\/pre>\n
Q3: \u5982\u4f55\u5728C++\u4e2d\u5b9e\u73b0\u6253\u5370\u5e26\u6709\u683c\u5f0f\u7684\u4e5d\u4e5d\u4e58\u6cd5\u8868\uff1f<\/strong><\/p>\n
A3: \u5982\u679c\u4f60\u60f3\u4e3a\u4e5d\u4e5d\u4e58\u6cd5\u8868\u6dfb\u52a0\u4e00\u4e9b\u683c\u5f0f\uff0c\u6bd4\u5982\u4f7f\u7528\u5236\u8868\u7b26\u6765\u5bf9\u9f50\u6570\u5b57\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528setw\u51fd\u6570\u6765\u8bbe\u7f6e\u8f93\u51fa\u7684\u5b57\u6bb5\u5bbd\u5ea6\u3002setw\u51fd\u6570\u9700\u8981\u5305\u542b< iomanip >\u5934\u6587\u4ef6\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728C++\u4e2d\u6253\u5370\u5e26\u6709\u683c\u5f0f\u7684\u4e5d\u4e5d\u4e58\u6cd5\u8868\uff1a<\/p>\n
#include <iostream>\n#include <iomanip>\nusing namespace std;\n\nint main() {\n  for (int i = 1; i <= 9; ++i) {\n    for (int j = 1; j <= i; ++j) {\n      cout << setw(2) << j << " * " << setw(2) << i << " = " << setw(2) << j * i << "  ";\n    }\n    cout << endl;\n  }\n  return 0;\n}\n<\/code><\/pre>\n
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