save project

diy2.py

+i=3
 username = "python"
 userpassword = "123456"
+
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")== user
-    if name == username and password password:
-        print("登录成功!")       
-        break
-        
-    if name == username and password != userpassword:
-        print("登录sb!")       
-        print("用密码错!请重新输入")
-        
-    if name != username and password == userpassword:
-        print("登录sb!")       
-        
-        print("用户名错误!请重新输入")
-        
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i-=1
+        if name == username and password== password:
+            print("登录成功!")       
+            break
+            
+        if name == username and password != userpassword:
+            print("登录sb!")       
+            print("用密码错!请重新输入")   
+        if name != username and password == userpassword:
+            print("登录sb!")       
+            
+            print("用户名错误!请重新输入")
+    else:
+            print("3kdldjdfl")
+            
 print("欢迎来到贝尔编程!")
\ No newline at end of file