python⽤户登陆

⽤户登陆（三次输错机会）且每次输错误时显示剩余错误次数（提示：使⽤字符串格式化）

count = 3
while count < 4:
    count -= 1
    username = input('Name: ').strip()
    passwd = input('Password: ').strip()
    if username == 'admin' and passwd == '123':
        print('成功')
        break
    else:
        print(f'失败,剩余{count}次')
        if count == 0:
            print('请重新运行')
            break