auto save

0.py

+cg = {'小明':66,'小刚':50,'小美':96,'小李':73,}
+k = ('输入你的姓名：')
+x = ('输入你的成绩：')
+if k in cg:
+    if int(x) < cg[k]:
+        cg[k] = int(x)
+        print(k + '')