save project

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:
+        print("登录成功!")
+    print("用户名和密码错误!请重新输入")
+print("欢迎来到贝尔编程!")
\ No newline at end of file

sss.py

+username = "python"
+userpassword = "123456"
+i=3
+while True:
+    if i>0:
+        name = input("请输入账号：")
+        password = input("请输入密码：")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+        if name != username:
+            print("账号错误！")
+            print("你还有"+str(i)+"登录次数")
+        if password != userpassword:
+            print("密码错误！")
+            print("你还有"+str(i)+"登录次数")
+    else:
+        print("账号被锁定")
+        exit()
+            
+print("欢迎来到贝尔编程!")
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