如何利用python快速生成大文件

import time

def creatfilesize(n):

local_time = time.strftime("%Y%m%d%H%M%S",time.localtime())

#file_name = “C:\测试大量文件与大文件\大文件\”+str(local_time)+".txt"

file_name = “C:\测试大量文件与大文件\大文件\” + str(local_time) + “.txt”

bigFile= open(file_name, ‘w’,encoding=‘utf-8’)

bigFile.seek(102410241024*n)

bigFile.write(‘test’)

bigFile.write(“test”)

bigFile.close()

if name == ‘main’:

n = int(input(“输入你要生成的文件大小（单位为G）:”))

creatfilesize(n)

fileObject.seek(offset[, whence])