正好匹配一个 $（美元）后跟任意数量的数字的正则表达式应该是什么？
[英]What should be the regular expression which matches exactly one $ (dollar) followed by any number of digits?
问题描述
$ : match results $
$637 : match results $637
$$ : match results $
$272$ : match results $272
$262$$ : match results $272
$$445: match results $
3727 : match results null
2727$: match results null
1 个解决方案
解决方案1
0 已采纳 2017-02-02 20:07:05
$ is a special character that represents the end of the string. 
$是一个特殊字符，表示字符串的结尾。
Escaping the dollar symbol should solve your problem:转义美元符号应该可以解决您的问题：
^\$\d*
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