save project

diy2.py

+username = "python"
+userpassword = "123456"
+i=3
+while True:
+    if i>0
+    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!")
+        break   
+    if name !=username:
+        i-=1
+        print("用户名不存在!请重新输入")
+        
+        continue
+    if password !=userpassword:
+        i-=1
+        print("密码错误,请重新输入!")
+        print("温馨提示："+str(i)+"您还有i次机会")
+        continue
+    else:
+        print("次数达到上限，账户被锁定")
+        exit()    
+print("欢迎来到贝尔编程!")
+
+        
+    else:
+        print("次数达到上限，账户被锁定")
+        exit()
\ No newline at end of file