本文介绍了正则表达式的一点帮助的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
'/ ^ [az,ñ] +(( - |)?[az,ñ] +)+(( - |)?[az,ñ] +)?$ / i'
如果我只输入1个字符,为什么不接受?
'/^[a-z,ñ]+((-| )?[a-z,ñ]+)+((-| )?[a-z,ñ]+)?$/i'
Why doesn't it accept if i only input 1 character?
推荐答案
^x+y+(z+)?
其中x,y和z是你的正则表达式中的短语。
这需要一个或多个x,然后是一个或更多y,然后一个或多个z - 至少三个字符。
我不知道你到底要做什么,所以我无法开始纠正它,但获得的副本[] - 它是免费的,它会检查并生成正则表达式。这将使问题显而易见!
Where x, y, and z are the "phrases" in your regex.
That requires "one or more x", then "one or more y", then "one or more z" - a minimum of three characters.
I don't know exactly what you are trying to achieve, so I can't begin to correct it, but get a copy of Expresso [^] - it's free, and it examines and generates Regular expressions. It will make it pretty obvious what the problem is!
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