第3天

import java.util.Scanner;
/*createdBy zsm
* 2021/11/1*/
public class ex2 {
    public static void main(String[] args) {
        String s1,s2=new String();
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入一段话:");
        s1=scanner.nextLine();
        System.out.println("请输入一段话:");
        s2=scanner.nextLine();
        System.out.println(s1+s2);
      // 单行注释  快捷键ctrl+/
    /* 快捷键 ctrl+shift+/
        String s1,s2=new String();
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入一段话:");
        s1=scanner.nextLine();
        System.out.println("请输入一段话:");
        s2=scanner.nextLine();
        System.out.println(s1+s2);
多行注释不能嵌套,禁止套娃! */ } }

 

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