38 lines
351 B
Markdown
38 lines
351 B
Markdown
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- exit 退出程序
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- continue 进行下一次循环
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- break 退出循环
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- shift 输入参数位移
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```
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#! /bin/env bash
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sum=0
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for i
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do
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let sum+=$i
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done
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echo $sum
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```
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```
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#! /bin/env bash
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sum=0
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while [ $# -ne 0 ]
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do
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let sum+=$1
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shift
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done
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echo $sum
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```
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```
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#! /bin/env bash
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sum=0
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while [ $# -ne 0 ]
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do
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let sum+=$1
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shift 2
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done
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echo $sum
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```
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