python 信息同时输出到控制台与文件的实例讲解

import logging
logging.basicConfig(filename='log_examp.log',level=logging.DEBUG)
logging.debug('This message should go to the log file')
logging.info('So should this')
logging.warning('And this, too')

import os
# 第一句输出到consle：
print("filepath:",__file__,"\nfilename:",os.path.basename(__file__))
# 第二句输出到txt：
with open("outputlog.txt","a+") as f:
 print("filepath:",__file__,
 "\nfilename:",os.path.basename(__file__))
 #当然 也可以用f.write("info")的方式写入文件

import os
import sys
temp=sys.stdout # 记录当前输出指向，默认是consle
with open("outputlog.txt","a+") as f:
 sys.stdout=f # 输出指向txt文件
 print("filepath:",__file__,
 "\nfilename:",os.path.basename(__file__))
 print("some other information")
 print("some other")
 print("information")
 sys.stdout=temp # 输出重定向回consle
 print(f.readlines()) # 将记录在文件中的结果输出到屏幕