SecureCRT怎样进行脚本编写

<code class="python"># $language = "python"
# $interface = "1.0"
import time
import os
import csv

user = 'admin'
passwd = 'huawei@123'

def main():
    crt.Screen.Synchronous = False  # 关闭屏幕同步

    with open('ip.txt', 'r') as f:
        host_list = f.readlines()

    for host in host_list:
        ip = host.strip() #去除空格
        cmd = f'/SSH2 /L {user} /PASSWORD {passwd} /C 3DES /M MD5 {ip}'
        crt.Session.ConnectInTab(cmd)
        time.sleep(1)
        crt.Screen.Send('\r\r') #发送两个回车
        crt.Screen.WaitForString('>')

        log_file = f"log_{ip}_{time.strftime('%Y%m%d%H%M%S')}.txt"
        crt.Session.LogFileName = log_file
        crt.Session.Log(True)
        time.sleep(1)
        crt.Screen.Send('display cur\r')

        while True:
            match = crt.Screen.WaitForStrings([" ---- More ----", '<bj>'], True) #使用True等待第一个匹配项
            if match == " ---- More ----":
                crt.Dialog.MessageBox(' ---- More ----')
                time.sleep(1)
                crt.Screen.Send(' ')
            elif match == '<bj>':
                crt.Screen.Send('\r')
                break
</code>