Merge pull request #454 from zhuzizyf/main

zhifu gao

2023-05-05 d6ccb437bc85da56f8354fc9b11c8986b4603ac4

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# -*- coding: utf-8 -*-
 
 
try:
    strtype = basestring
except NameError:
    strtype = str
 
 
def to_s(val):
    try:
        return unicode(val)
    except NameError:
        return str(val)