diff --git "a/17 \345\221\250\345\257\214/20221215 \345\244\215\344\271\240\344\275\234\344\270\232.md" "b/17 \345\221\250\345\257\214/20221215 \345\244\215\344\271\240\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..07dea28be9a3bcab384f1efc3b8abedce160abda
--- /dev/null
+++ "b/17 \345\221\250\345\257\214/20221215 \345\244\215\344\271\240\344\275\234\344\270\232.md"	
@@ -0,0 +1,28 @@
+## 作业
+
+```java
+public class a5 {
+    public static void main(String[] args) {
+        for (int i=0;i<=100;i++){
+            if (4.05*i+(100-i)*5.06==445.4){
+                System.out.println(i);
+                System.out.println(100-i);
+            }
+        }
+    }
+}
+```
+
+```java
+public class a4 {
+    public static void main(String[] args) {
+        for (int i=1;i<=9;i++){
+            System.out.println();
+            for (int j=1;j<=i;j++){
+                System.out.print(i+"x"+j+"="+(i*j)+"\t");
+            }
+
+        }
+    }
+}
+```
\ No newline at end of file
diff --git "a/17 \345\221\250\345\257\214/20221218 \346\226\271\346\263\225\344\275\234\344\270\232.md" "b/17 \345\221\250\345\257\214/20221218 \346\226\271\346\263\225\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..574d2253f70b07e3793cbe20e6369a3b3103bcd0
--- /dev/null
+++ "b/17 \345\221\250\345\257\214/20221218 \346\226\271\346\263\225\344\275\234\344\270\232.md"	
@@ -0,0 +1,54 @@
+## 作业
+
+```java
+import java.util.Scanner;
+// 定义一函数，用于求2个数中的较大数，并将其返回，这2个数字在主函数中由用户输入
+public class a7 {
+    public static void main(String[] args) {
+       int c = (int) max(z(),s());
+        System.out.println("最大值为"+c);
+    }
+    public static double max(int a , int b){
+        return a>b?a:b;
+    }
+    public static int z(){
+        Scanner sc=new Scanner(System.in);
+        System.out.println("请输入整数");
+        return sc.nextInt();
+    }
+    public static int s(){
+        Scanner sc=new Scanner(System.in);
+        System.out.println("请输入整数");
+        return sc.nextInt();
+    }
+}
+```
+
+```java
+import java.util.Scanner;
+//在主函数中从键盘接收X, Y , Z3个数，编写函数计算这3个数的立方和并返回计算结果：S=X3+Y3+Z3
+public class a8 {
+    public static void main(String[] args) {
+    int lf=(int)he(x(),y(),z());
+        System.out.println("他们的立法和为"+lf);
+    }
+    public static int he(int a,int b,int c){
+    return a*a*a+b*b*b+c*c*c;
+    }
+    public static int x(){
+        Scanner sc=new Scanner(System.in);
+        System.out.println("请输入整数");
+        return sc.nextInt();
+    }
+    public static int y(){
+        Scanner sc=new Scanner(System.in);
+        System.out.println("请输入整数");
+        return sc.nextInt();
+    }
+    public static int z(){
+        Scanner sc=new Scanner(System.in);
+        System.out.println("请输入整数");
+        return sc.nextInt();
+    }
+}
+```
\ No newline at end of file