diff --git "a/assignments/ShiQiyan/M3\347\273\203\344\271\240.py" "b/assignments/ShiQiyan/M3\347\273\203\344\271\240.py"
new file mode 100644
index 0000000000000000000000000000000000000000..26508005440a67d9cc9d56fa86166f36f8de269b
--- /dev/null
+++ "b/assignments/ShiQiyan/M3\347\273\203\344\271\240.py"
@@ -0,0 +1,47 @@
+students_list=[]
+class students():
+    def __init__(self,name,Chinese_score,math_score):
+        self.name=name
+        self.Chinese_score=Chinese_score
+        self.math_score=math_score
+    def change_score(self,course,target):
+        if course==1:
+            self.Chinese_score=target
+        else:
+            self.math_score=target
+    name='未知'
+    Chinese_score=-1
+    math_score=-1
+#任务1
+Jack=students('Jack',55,65)
+Pony=students('Pony',92,80)
+Pepper=students('Pepper',98,95)
+#手机上来回切输入法实在折磨，名字本土化一下XD
+students_list.append(Jack)
+students_list.append(Pony)
+students_list.append(Pepper)
+#任务一OK。使用for给他们print一波
+for each in students_list:
+    print(each.name,each.Chinese_score,each.math_score)
+#good，下一步。
+#任务2
+Jack.change_score(1,85)
+Jack.change_score(2,95)
+Pony.change_score(1,71)
+Pony.change_score(2,75)
+Pepper.change_score(1,93)
+Pepper.change_score(2,92)
+for each in students_list:
+    print(each.name,each.Chinese_score,each.math_score)
+#杰克同学进步巨大，波尼同学退步明显！支棱起来啊波尼酱！
+#任务3
+students_list.remove(Pony)
+#一行完事，这确实是面向对象编程的优点。兔崽子卷铺盖走人了，还是得好好学习
+for each in students_list:
+    print(each.name,each.Chinese_score,each.math_score)
+#任务4
+Cryin=students('Cryin',88,87)
+students_list.append(Cryin)
+#这位是真洋人
+for each in students_list:
+    print(each.name,each.Chinese_score,each.math_score)
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