diff --git a/成绩计算.py b/成绩计算.py
new file mode 100644
index 0000000..39541ca
--- /dev/null
+++ b/成绩计算.py
@@ -0,0 +1,36 @@
+# 输入学生姓名和三科成绩
+student_name = input("请输入学生姓名：")
+subject1 = float(input("请输入第一科成绩："))
+subject2 = float(input("请输入第二科成绩："))
+subject3 = float(input("请输入第三科成绩："))
+
+# 计算总分
+total_score = subject1 + subject2 + subject3
+
+# 确定等级
+if total_score >= 270:
+    grade = "A"
+elif total_score >= 240:
+    grade = "B"
+elif total_score >= 210:
+    grade = "C"
+elif total_score >= 180:
+    grade = "D"
+else:
+    grade = "F"
+
+# 确定是否及格
+passing_grade = 180  # 及格线
+if total_score >= passing_grade:
+    passing_status = "及格"
+else:
+    passing_status = "不及格"
+
+# 输出结果
+print("学生姓名：", student_name)
+print("第一科成绩：", subject1)
+print("第二科成绩：", subject2)
+print("第三科成绩：", subject3)
+print("总分：", total_score)
+print("等级：", grade)
+print("是否及格：", passing_status)