摘要：
package com.Leo.struct;import java.util.Scanner;public class IfDemo02 { public static void main(String[] args) { Scanner scanner = new Scanner(System. 阅读全文
摘要：
package com.Leo.struct;//顺序结构public class Demo01 { public static void main(String[] args) { System.out.println("hello1"); System.out.println("hello2") 阅读全文
摘要：
package com.Leo.scanner;import java.util.Scanner;public class Demo04 { public static void main(String[] args) { Scanner scanner = new Scanner(System.i 阅读全文
摘要：
package com.Leo.scanner;import java.util.Scanner;public class Demo01 { public static void main(String[] args) { //创建一个扫描对象，用于接受键盘数据 Scanner scanner = 阅读全文