Java SE之正则表达式Demo

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@Test
    public void regex() {//匹配教务系统课程
//      String content = "公共机座 (1-10)".replaceAll(" ","");
        String content = "6A-411公共机房50座 (1-10)".replaceAll(" ","");//标准格式 //6A-411;1-10;50
//      String pattern = "^(\\d+)([a-zA-Z])-(\\d+)([\u2E80-\u9FFF]+)(\\d+)([\\u2E80-\\u9FFF]+)......";//原始完全匹配
        String pattern = "^(?<arg1>\\d+\\S+(-)(\\d+))([\u2E80-\u9FFF]+)(?<arg2>\\d+)([\\u2E80-\\u9FFF]+).(?<arg3>\\S+).";
        String [] items = content.split(pattern);
        StringBuilder temp = new StringBuilder();
        for(String item : items) {
            temp.append(item);
        }
        System.out.println(temp);
 
        Matcher matcher = Pattern.compile(pattern).matcher(content);
        if(matcher.matches()){
            System.out.println("arg1:" + matcher.group("arg1"));
            System.out.println("arg2:" + matcher.group("arg2"));
            System.out.println("arg3:" + matcher.group("arg3"));
        }
        System.out.println(content);
    }   

 

输出:

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arg1:6A-411
arg2:50
arg3:1-10
6A-411公共机房50座(1-10)

 

正则的用途:匹配、搜索、替换、验证

1.要点1:[]用于仅能匹配一个字符

2.要点2:()用于固定某种字符串格式

3.要点3:中文utf8范围:[\u2E80-\u9FFF]

4.要点4:在正则表达式中设置参数断点格式:(?<argmentName>(regex1)(regex2)(regexN))

posted @   千千寰宇  阅读(254)  评论(0编辑  收藏  举报
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