Har*_*pta 3 java regex validation
需要一个允许以下有效值的正则表达式。(只允许小数和数字)
有效的 :
.1
1.10
1231313
0.32131
31313113.123123123
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无效的 :
dadadd.31232
12313jn123
dshiodah
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如果您想严格限制允许的匹配项:
^[0-9]*\.?[0-9]+$
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说明:
^ # the beginning of the string
[0-9]* # any character of: '0' to '9' (0 or more times)
\.? # '.' (optional)
[0-9]+ # any character of: '0' to '9' (1 or more times)
$ # before an optional \n, and the end of the string
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