摘要： package struct;public class WhileDemo01 { public static void main(String[] args) { int i =0; while (i<100){ i++; System.out.println(i); } }} 阅读全文

摘要： package struct;import java.util.Scanner;public class IfDemo03_chengji { public static void main(String[] args) { Scanner scanner = new Scanner(System. 阅读全文

摘要： package struct;public class SwitchDemo01 { public static void main(String[] args) { char grade ='A'; switch (grade){ case 'A': System.out.println("优秀" 阅读全文

摘要： public class Demo02 { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); //从键盘接收 System.out.println("使用nextline方式接收"); 阅读全文