单个for循环打印九九乘法表

 for (int i = 1,j=1; j <= 9; i++) {
        printf("%d * %d = %d %s",i,j,i*j,"\t"); 
        // NSLog(@"%d * %d = %d",i,j,i*j);
        if(i == j){
            i =0;j++;
            // NSLog(@"%@",@"\n");
            printf("%s","\n");
        }
}