python split指定多个分隔符

　　对于固定文件名格式提取信息比较好用

　　举例：

filename = "213939_213941-114042_114044.png"

X1, X2, Y1, Y2, _ = tuple(re.split("[-_.]", filename))

# X1 = 213939
# X2 = 213941
# Y1 = 114042
# Y2 = 114044