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 name == username and password == userpassword:
+            print("登录成功!")
+            break
+        elif name != username :     
+            print("用户名不成功!")  
+            print("你还有"+str(i)+"机会")
+            continue
+        elif password != userpassword: 
+            print("密码不成功!")
+            print("你还有"+str(i)+"机会")
+    else:
+        print("你锁了")
+        exit()
+    
+print("欢迎来到贝尔编程!")
+