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17 lines
284 B
Bash
17 lines
284 B
Bash
#!/usr/bin/env bash
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# using a global variable to pass a value
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function db1 {
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# $1和$2 不能从命令行中传递，只能调用函数时，手动传递
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echo $[ $1 * $2 ]
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}
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if [ $# -eq 2 ]
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then
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value=`db1 $1 $2`
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echo "The result is $value"
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else
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echo "Usage: badtest1 a b"
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fi
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