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怎样让$和字符串合体得到变量解决办法
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- 2016-06-13 13:35:49997browse
怎样让$和字符串合体得到变量
怎样让$和字符串合体得到变量？
------解决方案--------------------
echo "${$str}";
或者 $$str;
------解决方案--------------------
可变变量
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