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case语句格式如下
#!/bin/bash
read -p "please input code:" code
case $code in
"A")
echo "beijing"
;;
"B")
echo "shanghai"
;;
*)
echo "unknown"
;;
esac
"*"代表其他情况,注意每种情况后都需要加";;"
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原文地址:http://www.cnblogs.com/jackgaolei/p/5142015.html