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  • Java——字符串的split方法

    package Demo;
    import java.util.*;
    import java.io.*;
    //import org.apache.*;
    import org.apache.commons.io.FileUtils;
    
    public class loop {
        public static void loopfile (File file){
            try{
                long start = System.currentTimeMillis();
                FileReader fr = new FileReader(file);
                BufferedReader br = new BufferedReader(fr);
                String line;
                while (( line = br.readLine()) != null){
                    if (line.indexOf("Data_P",0) != -1){//如果不在里面返回的就是-1
                        String[] stringlist = line.split(" {1,}");//{1,}匹配一个或者多个空格
                        System.out.println(stringlist[stringlist.length-1]);
                    }
                }
                br.close();
                long end = System.currentTimeMillis();
                long diff = (end - start)/1000;
                System.out.println("循环耗时: " + diff);
            }catch (Exception e){
                e.printStackTrace();
                System.out.println(e);
            }
        }
        public static void main(String[] args){
            File file = new File("C:\work_data\Script&Tool\FT offline tool_RAW_DATA\Data\20201012050318_Site1.txt");
            loop.loopfile(file);
        }
    }
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  • 原文地址:https://www.cnblogs.com/shunguo/p/14502116.html
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