摘要：
package com.xiaojie.struct; public class WhileDemo03 { public static void main(String[] args) { //计算1+2+3+..+100=? int i = 0; int sum = 0; while (i<=1 阅读全文
摘要：
package com.xiaojie.struct; import java.util.Scanner; public class IfDemo01 { public static void main(String[] args) { Scanner scanner = new Scanner(S 阅读全文
摘要：
package com.xiaojie.scanner; import java.util.Scanner; public class Demo01 { public static void main(String[] args) { //创建一个扫描器对象，并用于接收键盘数据 Scanner sc 阅读全文