用while写的乘法表

#include<stdio.h>
int main()
{
    int a, b;
    a=1;
    b=1;
    while(1)
    {
        while(1)
        {
            printf("%d*%d=%d\t",a ,b ,a*b);
            a++;
            if(a>b)
            {
                printf("\n");
                break;
            }

        }
     a=1;
        b=b+1;
        if(b>9)
        break;

    }
    return 0;
}