save project

diy2.py

+username="python"
+userpassword="123456"
+i=3
+while True:
+    name=input("请输入用户名:")
+    password=input("请输入密码:")
+    i-=1
+    if i>0:
+      if name == username and password==userpassword:
+        print("登陆成功！p")
+        break
+      if name!=username:
+        print("用户名错误，请重新输入！")
+        continue
+      if password!=userpassword:
+        print("密码输入错误，请重新输入！")    
+    else:
+        print("你的账号被锁定，请到我司解锁")
+        exit()
+print("欢迎来到贝尔编程！")