python,datetime 時間格式化輸出

標籤：python   時間   日期格式化   

import datetime,redef parse_date(date_str): try: if not date_str: return None if "-" in date_str: if date_str.count("-") == 1: date = datetime.datetime.strptime(date_str, "%Y-%m") elif date_str.count("-") == 2: date = datetime.datetime.strptime(date_str, "%Y-%m-%d") elif "年" in date_str: if "日" in date_str: date = datetime.datetime.strptime(date_str, "%Y年%m月%d日") elif "月" in date_str: date = datetime.datetime.strptime(date_str, "%Y年%m月") else: date = datetime.datetime.strptime(date_str, "%Y年") elif date_str.isdigit(): if len(date_str) == 4: date = datetime.datetime.strptime(date_str, "%Y") elif len(date_str) > 6: date = datetime.datetime.strptime(date_str, "%Y%m%d") else: date = datetime.datetime.strptime(date_str, "%Y%m") else: date = None except: return None return datedate_reg_v1 = re.compile(r"\d+年\d+月\d+日")date_reg_v2 = re.compile(r"\d+年\d+月")date_reg_v3 = re.compile(r"\d+-\d+-\d+")date_reg_v4 = re.compile(r"\d+-\d+")str =‘ 2199年10月 ‘# 正則去掉多餘的kk = date_reg_v2.search(str).group()kk =parse_date(kk)print(kk)結果 ：

2199-10-01 00:00:00

python,datetime 時間格式化輸出