目录Java中的StringUtils引入及使用pom.XML中引入依赖字符串处理(StringUtils)随机数生成类(RandomStringUtils)数字类(NumberUtils)数组类(ArrayUtils)日期类(DateUtils)PS：java中StringUtils的引用及用法简介Java中
This question already has answers here: Closed 9 years ago.开发者_如何学C Possible Duplicate: Why can’t I create an abstract constructor on an abstract C# class?
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