auto save

diy1.py

 username = "python"
-userpassword = "123456"  #int
+userpassword = "123456"
 
-num = 3
 while True:
-    if num>0:
-        uname = input("输入账号：")
-        upass = input("输入密码：")#通过input()输入的所有数据，都是str（字符串）
-        
-        num-=1
-        if uname == username and upass == userpassword:
-            print("登入成功！")
-            break
-        if uname != username:
-            print("账号错误！")
-        else:
-            if upass != userpassword:
-                print("密码错误！")
-    else:
-        print("账户锁定！")
-        exit()
-print("欢迎回来！")
\ No newline at end of file
+    name = input("输入账号：")
+    password = input("输入密码：")
+
+    if name == username and password == userpassword:
+        print("登入成功！")
+        break
+    if name == username:
+        print("账号错误！")
+    if password == userpassword:
+        print("密码错误！")
+print("登入失败！")
\ No newline at end of file