C++-map用法总结

VS2012

#include <stdio.h>
#include <map>
#include <string>

using namespace std;

int main()
{
    map<int, string> data;
    data[1]="这是1";
    data[2]="这是2";
    data[3]="这是3";
    
    data[3]="这是更改后的3";

    for (map<int, string>::iterator it = data.begin(); it != data.end(); it++)
    {

        char msg[256];
        sprintf_s(msg, "%d", it->first);
        printf(msg);
        printf(it->second.c_str());
        printf("
");
    }


    map<string,string> data123;
    data123["100"]="这是100";
    data123["200"]="这是200";
    data123["300"]="这是300";

    for (map<string, string>::iterator it = data123.begin(); it != data123.end(); it++)
    {
        printf(it->first.c_str());
        printf(it->second.c_str());
        printf("
");
    }

    getchar();

    return 0;
}

Caesar卢尚宇

2021年2月19日