save project

diy3.py

@@ -9,12 +9,15 @@ score = {'悟空': student1, '诺依': student2, '小贝': student3}
 # 查询并打印出输入的名字对应的所有科目的成绩
 # 查询并打印出输入的名字对应的所有科目的成绩
 while True :
 while True :
     name = input("名字：")
     name = input("名字：")
-    g=input("科目：")
     if name in score:
     if name in score:
-        a = score[name][g]
-        print("*"*30)
-        print(a)
-        print("*"*30)
-        break
+        g=input("科目：")
+        if g in score[name]:
+            a = score[name][g]
+            print("*"*30)
+            print(a)
+            print("*"*30)
+            break
+        else:
+            print("字符错误")
     else:
     else:
         print('输入错误')
         print('输入错误')
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