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// Java输入、存储、输出
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package xiangmu;
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import java.util.Scanner;
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public class Ceshi {
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public static void main(String args[]) {
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System.out.print("请输入用户名：");
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Scanner sc = new Scanner(System.in);
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String yonghuming = sc.next(); // 变量
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System.out.print("你好，"+yonghuming);
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sc.close();
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}
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}
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