save project

diy2.py

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