auto save

diy2.py

+username = "python"
+userpassword = "123456"
+while True:
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpassword:
+        break
+        print("登录成功!")
+    if name!=username:
+        print("name")
+    if password!=userpassword
+        print("password")
+         i=5
+         i！=0
+    if i>5+str(i)+print("okk
+    
+    ")
+    if i<5+str(i)+print("no")
+
+
+
+       
+    print("用户名和密码错误!请重新输入")
+print("欢迎来到贝尔编程!")
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