diff --git "a/02 \351\231\210\346\230\216\345\207\275/java\347\254\2545\346\254\241\344\275\234\344\270\232.md" "b/02 \351\231\210\346\230\216\345\207\275/java\347\254\2545\346\254\241\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..99776d2101b1fb4b2122448581f0c5a7dd9dd8fa
--- /dev/null
+++ "b/02 \351\231\210\346\230\216\345\207\275/java\347\254\2545\346\254\241\344\275\234\344\270\232.md"	
@@ -0,0 +1,32 @@
+# java第5次作业
+
+# 循环
+
+``` java
+for(int i=1;i<="循环次数";i++){
+    " 循环内容"
+}
+```
+
+
+
+# 作业
+
+ ``` java
+ import java.util.Scanner;
+ 
+ public class Nacida {
+     public static void main(String[] args) {
+         Scanner sc=new Scanner(System.in);
+         System.out.println("请输入内容");
+         String next= sc.next();
+         Scanner mk=new Scanner(System.in);
+         System.out.println("请输入次数");
+         int num=sc.nextInt();
+         for (int i=1;i<=num;i++){
+             System.out.println(next);
+         }
+     }
+ }
+ ```
+
diff --git "a/02 \351\231\210\346\230\216\345\207\275/java\347\254\254\345\205\255\346\254\241\344\275\234\344\270\232.md" "b/02 \351\231\210\346\230\216\345\207\275/java\347\254\254\345\205\255\346\254\241\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..f47db28a5f85f572d01055c6f366c31b6a5e9d7d
--- /dev/null
+++ "b/02 \351\231\210\346\230\216\345\207\275/java\347\254\254\345\205\255\346\254\241\344\275\234\344\270\232.md"	
@@ -0,0 +1,55 @@
+```
+int i=1
+while（条件）{
+输出内容；
+i++/i--
+}
+
+
+```
+
+### 第六次作业
+
+``` java
+import java.util.Objects;
+import java.util.Random;
+import java.util.Scanner;
+// 玩猜数字游戏,每局有三次机会(不能用for) ,提示:结束循环可以用break
+// 三次机会用完,询问用户是否继续.输入"Y"或"y"就让其继续猜3次,如果回答"N"或者"n",就结束游戏;
+
+public class Nacida {
+    public static void main(String[] args) {
+        Random ran=new Random();
+        int number=ran.nextInt(100)+1;
+        int i=1;
+        while (true){
+            Scanner sc=new Scanner(System.in);
+            System.out.println("请输入你猜的数字");
+            double num= sc.nextDouble();
+            i++;
+            if (num<number){
+                System.out.println("输小了");
+            } else if (num>number) {
+                System.out.println("输大了");
+            }else{System.out.println("你猜对了");
+            }
+            if (i==4){
+                System.out.println("输入Y重新开始");
+                char answer=sc.next().charAt(0);
+                if (answer=='y'||answer=='Y'){i=1;}
+                else{break;}
+
+                }
+
+            }
+
+
+        }
+        }
+
+
+
+
+
+```
+