用while循环写99乘法表

可以使用两个嵌套的while循环来实现99乘法表的输出，其中外层循环控制行数，内层循环控制列数。具体实现如下：

int i = 1;
while (i <= 9) {
    int j = 1;
    while (j <= i) {
        printf("%d*%d=%d\t", j, i, i*j);
        j++;
    }
    printf("\n");
    i++;
}

在上面的代码中，外层循环变量i表示当前行数，内层循环变量j表示当前列数。在每一行中，内层循环从1开始，一直循环到当前行数i，输出i*j的结果。每一行输出完毕后，通过printf函数输出一个换行符，以便于下一行的输出。

相关问题

python用while循环写九九乘法表

i = 1
while i <= 9:
    j = 1
    while j <= i:
        print(j, "*", i, "=", i*j, end="\t")
        j += 1
    print()
    i += 1

输出结果：

1 * 1 = 1	
1 * 2 = 2	2 * 2 = 4	
1 * 3 = 3	2 * 3 = 6	3 * 3 = 9	
1 * 4 = 4	2 * 4 = 8	3 * 4 = 12	4 * 4 = 16	
1 * 5 = 5	2 * 5 = 10	3 * 5 = 15	4 * 5 = 20	5 * 5 = 25	
1 * 6 = 6	2 * 6 = 12	3 * 6 = 18	4 * 6 = 24	5 * 6 = 30	6 * 6 = 36	
1 * 7 = 7	2 * 7 = 14	3 * 7 = 21	4 * 7 = 28	5 * 7 = 35	6 * 7 = 42	7 * 7 = 49	
1 * 8 = 8	2 * 8 = 16	3 * 8 = 24	4 * 8 = 32	5 * 8 = 40	6 * 8 = 48	7 * 8 = 56	8 * 8 = 64	
1 * 9 = 9	2 * 9 = 18	3 * 9 = 27	4 * 9 = 36	5 * 9 = 45	6 * 9 = 54	7 * 9 = 63	8 * 9 = 72	9 * 9 = 81	

python中用while循环写九九乘法表

i = 1
while i <= 9:
    j = 1
    while j <= i:
        print(f"{j} * {i} = {i*j}", end="\t")
        j += 1
    print()
    i += 1

输出结果：

1 * 1 = 1	
1 * 2 = 2	2 * 2 = 4	
1 * 3 = 3	2 * 3 = 6	3 * 3 = 9	
1 * 4 = 4	2 * 4 = 8	3 * 4 = 12	4 * 4 = 16	
1 * 5 = 5	2 * 5 = 10	3 * 5 = 15	4 * 5 = 20	5 * 5 = 25	
1 * 6 = 6	2 * 6 = 12	3 * 6 = 18	4 * 6 = 24	5 * 6 = 30	6 * 6 = 36	
1 * 7 = 7	2 * 7 = 14	3 * 7 = 21	4 * 7 = 28	5 * 7 = 35	6 * 7 = 42	7 * 7 = 49	
1 * 8 = 8	2 * 8 = 16	3 * 8 = 24	4 * 8 = 32	5 * 8 = 40	6 * 8 = 48	7 * 8 = 56	8 * 8 = 64	
1 * 9 = 9	2 * 9 = 18	3 * 9 = 27	4 * 9 = 36	5 * 9 = 45	6 * 9 = 54	7 * 9 = 63	8 * 9 = 72	9 * 9 = 81