diff --git a/day03/src/com/inmind/if01/Test04.java b/day03/src/com/inmind/if01/Test04.java
new file mode 100644
index 0000000..842b5f1
--- /dev/null
+++ b/day03/src/com/inmind/if01/Test04.java
@@ -0,0 +1,32 @@
+package com.inmind.if01;
+/*
+指定考试成绩，判断学生等级
+90-100 优秀
+80-89 好
+70-79 良
+60-69 及格
+60以下 不及格
+ */
+public class Test04 {
+    public static void main(String[] args) {
+        //定义成绩
+        int score = 50;
+        String result;
+
+        //多条件判断，得出结果
+        //ctrl+D:复制当行内容
+        if (score >= 90 && score <= 100) {
+            result = "优秀";
+        } else if (score >= 80 && score <= 89) {
+            result = "好";
+        }else if (score >= 70 && score <= 79) {
+            result = "良好";
+        } else if (score >= 60 && score <= 69) {
+            result = "及格";
+        } else {
+            result = "不及格";
+        }
+
+        System.out.println("当前成绩为："+result);
+    }
+}