- # for 写法一:
- while [ 判断条件 ]
- do
- echo "循环输出"
- done
-
- # for 写法二:
- while [ 判断条件 ]; do
- echo "循环输出"
- done
-
- i=1
- while [ $i -le 5 ]; do
- echo "$i"
- let i++
- done
-
- 输出:
-
- 1
- 2
- 3
- 4
- 5
-
- i=1
- # 通过 : 进行死循环,: 会一直为 true
- while :
- do
- echo "$i"
- let i++
- done
-