#include<stdio.h>
#include<string.h>
int main()
{
    int i,n=0,temp;
    char str[30];
    printf("请输入你的邮箱地址：\n");
    scanf("%s",&str);
    printf("请输出你的邮箱地址：\n");
    for(i=0;i<30;i++)
        printf("%c",str[i]);
    if(str[i]!=' ')
        n=n+1;
    for(i=0;i<n;i++)
    {
        if(str[i]=='@') temp=1;
        if(str[0]=='@'&&str[n-1]=='.') temp=0;
        else
            temp=1;
        i++;
        if(str[i]=='q'&&str[i+1]!='q') temp=0;
        else
            temp=1;
        i++;
        i++;
        if(str[i]!='.') temp=0;
        else
            temp=1;
        i++;
        if(str[i]=='c'&&str[i+1]=='o'&&str[i+2]=='m')
            temp=1;
        else
            temp=0;
    }
        if(temp)
            temp=1;
        printf("你的邮箱地址正确\n");
         temp=0;
            printf("你的邮箱地址不正确\n");
        return 0;
}