AI代码解释 /***判断回文数***///情况1.利用字符串判断回文//实现方法:利用字符串指针从头尾分别判断#include<stdio.h>#include<stdlib.h>#include<stdbool.h>#include<ctype.h>//typedef char Pre_; 方便调试回文时更改类型boolJudge_char(constchar*p);//声明一个布尔型变量的函数原型intmain(int argc,ch...
size_t idx= filename.find('.');//as a return valueif(idx ==string::npos) { cout<<"filename does not contain any period!"<<endl; }else{stringtmpname =filename; tmpname.replace(idx+1,string::npos,"xxx");//string::npos作为长度参数,表示直到字符串结束cout <<"repalce:"<< tmpname...
string s("value"); //用字符串value初始化s string s(n,'c'); //生成一个字符串,包含n个c字符 string s(b,e); //以区间b,e内的字符作为字符串s的初值 string s(cp,n); //取字符数组,前n个字符作初值 string s(s2,pos2); //将字符串s2"始于位置pos2"部分当作字符串的初值 string s(s2,...
#include<iostream>#include<string>using namespacestd;//20200425 测试字符串操作 公众号:C与C语言plusintmain(){stringname("AnnaBelle");string::size_type pos1 = name.find("Bell");cout<< pos1 <<endl;//返回下标4,如果没找到返回nposif(pos1 ==string::npos)cout<<"没找到!"<<endl;elsecout<<...
创建hash对象 std::unordered_map<int, std::string> hashTable; // 添加元素 hashTable[0] = "False"; hashTable[1] = "True"; // 迭代并打印 for (const auto& node : hashTable) { std::cout << "Key = " << node.first << " Value = " << node.second << std::endl; } return ...
{ std::cout << "JSON格式错误" << std::endl; return 0; } // 获取到Json字符串的根节点 QJsonObject root_object = root_document.object(); // 解析blog字段 QString blog = root_object.find("blog").value().toString(); std::cout << "字段对应的值 = > "<< blog.toStdString() <<...
public static int Main(string[] args) { try { // Create an Outlook application. Outlook.Application oApp = new Outlook.Application(); // Get the Mapi NameSpace and the Logon. Outlook.NameSpace oNS = (Outlook.NameSpace)oApp.GetNamespace("mapi"...
ctime_r(), ctime64_r() — Convert time value to date and time character string ctrace() — Request a traceback cuserid() — Return character login of the user dbm_clearerr() — Clear database error indicator dbm_close() — Close a database dbm_delete() — Delete database...
if(CertGetNameString( pSignerCert, CERT_NAME_SIMPLE_DISPLAY_TYPE, 0, NULL, pszNameString, MAX_NAME) > 1) { printf("The message signer is %s \n",pszNameString); } else { MyHandleError(L"CertGetNameString failed.\n"); } } else { MyHandleError(L"Cert not found.\n"); } //---...
std::auto_ptr<std::string> ps (new std::string(str));C++ 11shared_ptr unique_ptr weak_ptr auto_ptr(被 C++11 弃用)Class shared_ptr 实现共享式拥有(shared ownership)概念。多个智能指针指向相同对象,该对象和其相关资源会在 “最后一个 reference 被销毁” 时被释放。为了在结构较复杂的情景中执行...