使用while 打印10~1,1~10
#!/bin/bash i=10 while ((i>0));do echo $i ((i--)) done 答案:
10
9
8
7
6
5
4
3
2
1
0
i=0 while ((i<=10));do echo $i ((i++)) done
答案:
0
1
2
3
4
5
6
7
8
9
10
方法二,语法二:
#!/bin/bash
i=0
while [ $i -lt 10 ];do
echo $i
let i+=1
done
#!/bin/bash i=10 while ((i>0));do echo $i ((i--)) done 答案:
10
9
8
7
6
5
4
3
2
1
0
i=0 while ((i<=10));do echo $i ((i++)) done
答案:
0
1
2
3
4
5
6
7
8
9
10
方法二,语法二:
#!/bin/bash
i=0
while [ $i -lt 10 ];do
echo $i
let i+=1
done