python 写入csv防止乱码

# coding: utf-8import codecsimport osos.chdir("F:\project\predict")import csvcsvfile = open('csv_test.csv', 'wb')csvfile.write(codecs.BOM_UTF8) #防止乱码writer = csv.writer(csvfile)writer.writerow(['姓名', '年龄', '电话'])data = [    ('小王', '25', '1520586115'),    ('小李', '18', '1368547259')]writer.writerows(data)csvfile.close()