Java优学网Pattern类入门解析：告别性能陷阱，轻松掌握正则表达式高效用法
//基础编译PatternemailPattern=Pattern.compile("\w+@\w+\.\w+");//带标志的编译-忽略大小写PatterncaseInsensitivePattern=Pattern.compile("hello",Pattern.CASE_INS...
//基础编译PatternemailPattern=Pattern.compile("\w+@\w+\.\w+");//带标志的编译-忽略大小写PatterncaseInsensitivePattern=Pattern.compile("hello",Pattern.CASE_INS...