save project

diy1.py

 username = "python" 
 username = "python" 
 userpassword = '123456'
 userpassword = '123456'
 while True:
 while True:
-    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 == userpassword:
-        print("登录成功！")
-        break
-    if name!= username:
-        print("用户名不存在，请重新输入!")
-        continue
-    if password!= userpassword
-        print("密码输入错误，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 == userpassword:
+            print("登录成功！")
+            break
+        if name!= username:
+            print("用户名不存在，请重新输入!")
+            continue
+        if password!= userpassword
+            print("密码输入错误，请重新输入!")
     else:
     else:
         print("你的账户已被锁定，请带身份证来我司解锁")
         print("你的账户已被锁定，请带身份证来我司解锁")
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")
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