auto save

ryr.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-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if username != name :
+            print("用户名错误")
+            continue
+        if userpassword != password:
+            print("密码错误")
+    else :
+        print("你的用户已被锁定")
+        exit()
+print("欢迎来到贝尔编程!")
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