#######二〇二〇年九月二十四日 转化为数字日期

def ChineseToDate(chineseStr):
    strch1='0一二三四五六七八九十'
    strch2='〇一二三四五六七八九十'
    y, m, d='', '', ''
    if chineseStr.find('年') > 1:
        y=chineseStr[0:chineseStr.index('年')]
    if chineseStr.find('月') > 1:
        m=chineseStr[chineseStr.index('年') + 1:chineseStr.index('月')]
    if chineseStr.find('日') > 1:
        d=chineseStr[chineseStr.index('月') + 1:chineseStr.index('日')]
    # 年
    if len(y) == 4:
        if y.find('0') > 1:
            y=str(strch1.index(y[0:1])) + str(strch1.index(y[1:2])) + str(strch1.index(y[2:3])) + str(
                strch1.index(y[3:4]))
        else:
            y=str(strch2.index(y[0:1])) + str(strch2.index(y[1:2])) + str(strch2.index(y[2:3])) + str(
                strch2.index(y[3:4]))
    else:
        return None
    # 月
    if len(m) == 1:
        m=str(strch1.index(m))
    elif len(m) == 2:
        m=str(strch1.index(m[0:1]))[0:1] + str(strch1.index(m[1:2]))

    # 日
    if len(d) == 1:
        d=str(strch1.index(d))
    elif len(d) == 2:
        if len(str(strch1.index(d[0:1]))) == 1:
            d=str(strch1.index(d[0:1])) + str(strch1.index(d[1:2]))[1:2]
        else:
            d=str(strch1.index(d[0:1]))[0:1] + str(strch1.index(d[1:2]))
    elif len(d) == 3:
        d=str(strch1.index(d[0:1])) + str(strch1.index(d[2:3]))
    # 生成 日期
    if y != '' and m != '' and d != '':
        return y + '-' + m + '-' + d  # datetime.date(int(y), int(m), int(d))
    elif y != '' and m != '':
        return y + '-' + m  # datetime.date(int(y), int(m))
    elif y != '':
        return y

if __name__ == '__main__':
    chineseStr = "二〇二〇年九月二十四日"
    date = ChineseToDate(chineseStr)
    print(date)   # 2020-9-24