标点 有中文 的吧

根据楼主的程序目的，我觉得这个程序比较靠谱。
# include <stdio.h>
# include <string.h>
void main()
{
    char a[7];
    printf("请输入验证密码(6位数且仅限输入六次)：\n");
    for(int m=1;m<=6;m++)
    {
        for(int i=0;i<6;i++)
        {
            scanf("%c",&a[i]);
        }
        a[i]=0;
        if(strcmp(a,"654321")==0)
            printf("欢迎进入!");   
        else
            printf("密码输入错误！\n");
    }
}

c++的程序更简单
# include <iostream>
# include <string>
using namespace std;
int main()
{
    string a;
    cout<<"请输入验证密码(6位数且仅限输入六次)：\n";
    for(int m=1;m<=6;m++)
    {
        cin>>a;
        if(a=="654321")
        {
            cout<<"欢迎进入!"<<endl;
            break;
        }   
        else
            cout<<"密码输入错误！\n";
    }
    return 0;
}