Cshell for循环 99 乘法表
时间: 2024-06-15 14:04:40 浏览: 118
Cshell是一种Unix shell,它支持类似于C语言的语法和结构。在Cshell中,可以使用for循环来实现乘法表的输出。
以下是使用Cshell编写的乘法表的示例代码:
```cshell
#!/bin/csh
set i = 1
while ($i <= 9)
set j = 1
while ($j <= $i)
set result = `expr $i \* $j`
echo -n "$i * $j = $result\t"
@ j = $j + 1
end
echo ""
@ i = $i + 1
end
```
这段代码使用了两个嵌套的while循环来生成乘法表。外层循环控制行数,内层循环控制每行的列数。在每次循环中,使用`expr`命令计算乘法结果,并使用`echo`命令输出结果。
运行以上代码,将会输出如下的乘法表:
```
1 * 1 = 1
2 * 1 = 2 2 * 2 = 4
3 * 1 = 3 3 * 2 = 6 3 * 3 = 9
4 * 1 = 4 4 * 2 = 8 4 * 3 = 12 4 * 4 = 16
5 * 1 = 5 5 * 2 = 10 5 * 3 = 15 5 * 4 = 20 5 * 5 = 25
6 * 1 = 6 6 * 2 = 12 6 * 3 = 18 6 * 4 = 24 6 * 5 = 30 6 * 6 = 36
7 * 1 = 7 7 * 2 = 14 7 * 3 = 21 7 * 4 = 28 7 * 5 = 35 7 * 6 = 42 7 * 7 = 49
8 * 1 = 8 8 * 2 = 16 8 * 3 = 24 8 * 4 = 32 8 * 5 = 40 8 * 6 = 48 8 * 7 = 56 8 * 8 = 64
9 * 1 = 9 9 * 2 = 18 9 * 3 = 27 9 * 4 = 36 9 * 5 = 45 9 * 6 = 54 9 * 7 = 63 9 * 8 = 72 9 * 9 = 81
```
阅读全文