save project

diy2.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=i-1
+        if password !=:
+        if name == username and password == password:
+            print("登录成功!")
+            break
+        elif name != username:
+            print("用户名错误")
+            print("你还有"+str(i)"次登入机会" ) 
+        if password != password:
+            print("密码错误")  
+            print("你还有"+str(i)"次登入机会" )           
+        else:    
+            print("你已被锁定")  
+            exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file