Recently I discovered two amazing regular expression features: ?: and ?!. I was curious of other neat regex features. So maybe you would like to share some tricky regular expressions.
<代码>d为位数(幅度代码>[0-9])和<代码>+系指一次或多次。 因此,d+
系指match one or more 数s>。
例如,<代码>42”与格式<代码>d+相吻合。
您也可通过(在线、免费)或(可免费免费上网视窗)等工具,找到对此类定期表述的解释,然后表明(如果有的话)符合该标准的内容。 他们还试图用词解释经常表达的内容。
<编码>d称为特性类别,与数字相匹配。 等于<代码>[0-9]。
<代码>+对以前特性的1或更多发生作了对应。
http://code>d+系指1或以上数字。
<代码>d系指数字。 <代码>+系指1倍或多倍。 http://code>d+。 该编码将匹配<代码>12和1
。
d 系数,+为1名或1名以上,顺序为1名或1名以上。
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