save project

成绩.py

+cost = {"小明":58,"小刚":90,"小李":57,"小白":53}
+cost = {"小明":58,"小刚":90,"小李":57,"小白":53}
+k = input("请输入你的名字")
+v = int(input("请输入你的成绩："))
+if k in cost:
+    if v > cost[k]:
+        cost[k] = v
+        print("恭喜你"+k+"同学"+"你的成绩已更新为"+str(v))
+    else:
+        print("很遗憾本次成绩没能刷新。")
+else:
+    cost[k]=v
+    print("恭喜你"+k+"同学，你的第一次成绩"+str(v)+"已经上传")
+    
\ No newline at end of file