auto save

diy2.py

+username = "python"
+userpassword = "123456"
+while True:
+    name = input("名字:")
+    if name != username:
+        print("脑子不想事,没这名")  
+        continue 
+    password = input("密码:")
+    if password != userpassword:
+        print("脑子不想事,没这密码")
+    if name == username and password == userpassword:
+        print("对了!")
+        break
+    else:        
+        print("错了,重输！")
+print("进来!")
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