save project

diy2.py

+username = "a"
+
+userpassword = "123456"
+
+i=3
+
+while True:
+    
+    if i!=0:
+
+        i-=1
+
+        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:
+
+            print('请重新输入用户名')
+
+            print('提示：你还剩'+str(i)+'次机会')
+
+            continue
+
+        if password!=userpassword:
+
+            print('请重新输入密码')
+
+            print('提示：你还剩'+str(i)+'次机会')
+
+    else:
+
+        print('账号已锁定')
+
+        exit()
+    
+print("欢迎来到贝尔编程!")
\ No newline at end of file