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
+        if name != username:
+            print("用户名错误!")
+            print(你还有"+str(i)+"机会)
+            continue
+        if password !=userpassword:    
+            print("密码错误!")
+            print(你还有"+ str(i) +"机会) 
+    else:
+        print("已锁定")               
+        exit()
+print("欢迎来到贝尔编程")
+    
+    
\ No newline at end of file