diff --git "a/20 \347\237\263\350\211\257\346\266\233/20221203 for\345\276\252\347\216\257\344\275\234\344\270\232.md" "b/20 \347\237\263\350\211\257\346\266\233/20221203 for\345\276\252\347\216\257\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..ba974d1a06791424c7c2e96c784f2e440a58005d
--- /dev/null
+++ "b/20 \347\237\263\350\211\257\346\266\233/20221203 for\345\276\252\347\216\257\344\275\234\344\270\232.md"	
@@ -0,0 +1,40 @@
+# for 循环作业
+
+1.让用户输入一个数字,根据这个数字,循环输出"我爱学习,我爱java",比如,用户输入数字 9 就在控制台输出9行"我爱学习,我爱java"
+
+```java
+import java.util.Scanner;
+
+public class A4 {
+    public static void main(String[] args) {
+        Scanner sc =new Scanner(System.in);
+        System.out.println("请输入你要重复多少次这个话");
+        int num =sc.nextInt();
+        for (int num1=0; num1<num; num1++){
+            System.out.println("我爱学习，我爱java");
+        }
+
+    }
+}
+```
+
+2.用户分别输入数 a,数b,让程序实现从a 开始循环到b.输出"有生之年,能看到中国队出线吗?"
+
+```java
+import java.util.Scanner;
+
+public class A5 {
+    public static void main(String[] args) {
+        Scanner sc =new Scanner(System.in);
+        System.out.println("请输入一个数表示开始");
+        int a = sc.nextInt();
+        System.out.println("请输入一个数表示结束");
+        int b = sc.nextInt();
+        for (int i=a; i<b; i++){
+            System.out.println("有生之年，我能看到中国队出线吗？");
+        }
+    }
+}
+```
+
+
diff --git "a/20 \347\237\263\350\211\257\346\266\233/20221205 while\344\275\234\344\270\232.md" "b/20 \347\237\263\350\211\257\346\266\233/20221205 while\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..e2527636387c83f3e9b464cee52cd5ca24f625a6
--- /dev/null
+++ "b/20 \347\237\263\350\211\257\346\266\233/20221205 while\344\275\234\344\270\232.md"	
@@ -0,0 +1,61 @@
+# while 作业
+
+## 猜数字游戏
+
+```java
+import java.util.Random;
+import java.util.Scanner;
+
+public class A6 {
+    public static void main(String[] args) {
+        Random r = new Random();
+        Scanner sc =new Scanner(System.in);
+        int desNumber = r.nextInt(100)+1;
+        System.out.println("我心中的数生成");
+
+        while (true){
+            System.out.println("猜猜我心中数是多少，只有三次机会哦，数值在0~100之间");
+            for (int i = 0; i < 3; i++) {
+                int number = sc.nextInt();
+
+
+                if (number > desNumber) {
+                    System.out.println("你猜的数字过大");
+                } else if (number < desNumber) {
+                    System.out.println("你猜的数字过小");
+                } else {
+                    System.out.println("恭喜你猜对了");
+                    System.out.println("游戏结束");
+                    break;
+                }
+                if (i == 2) {
+                    System.out.println("抱歉你的次数用完了");
+                    System.exit(0);
+                }
+                if (i < 3) {
+                    System.out.println("你还有" + (2 - i) + "次机会！！！");
+                }
+            }
+        }
+    }
+}
+
+```
+
+
+
+## 九九乘法表
+
+```java
+public class A7 {
+    public static void main(String[] args) {
+        for (int i=1;i<=9;i++){
+            for(int j=1;j<=i;j++){
+                System.out.print(i+"*"+j+"="+i*j+"\t");
+            }
+            System.out.println();
+        }
+    }
+}
+
+```