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正则表达式不要背
source link: https://juejin.im/post/5cdcd42551882568651554e6
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正则表达式一直是困扰很多程序员的一门技术，当然也包括曾经的我。大多数时候我们在开发过程中要用到某些正则表达式的时候，都会打开谷歌或百度直接搜索然后拷贝粘贴。当下一次再遇到相同问题的时候，同样的场景又再来一遍。作为一门用途很广的技术，我相信深入理解正则表达式并能
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