auto save

diy1.py

 user="依依"
 mima="1111"
-while True：
-    user1=input("请输入用户名")
-    mima1=input("请输入密码")
-
-    if user==user1 and mima==mima1:
-        print("登录成功")
-        break
-        print("失败")
\ No newline at end of file
+i=3
+while True:
+    user1=input("请输入用户名:")
+    mima1=input("请输入密码:")
+    i=i-1
+    if user1==user and  mima1==mima: 
+        print("登陆成功")  
+        break 
+    if  user1!=user :    
+        print("用户名错误")
+    if  mima1!=mima:
+        print("密码错误")
+    
+    print("你还有"+str("i")+"次机会")
+        
+    if i==0:
+        print("jinzhi")
+        exit()
+print("欢迎回来")