IG902通过自定义函数，连接sql server数据库报错：
python: iconv.c:340: tds_iconv_open: Assertion `ret == 0' failed.
from common.Logger import logger
from datetime import datetime
import time
import pymssql
def main():
host1 = '192.168.1.77'
user1 = 'sa'
passwd1 = 'As123456.'
db1 = 'test'
charset1 = 'utf8'
connect1 = pymssql.connect(host=host1,user=user1,password=passwd1,database=db1,charset=charset1)
cursor1 = connect1.cursor()
logger.info(time.strftime('%Y-%m-%d %H:%M:%S') + ' sql connect ok')import pymssql 没报错，说明是有pymssql库可以用的
