8：traceback模块的使用_异常写入日志文件

trackback 模块
【示例】使用 Traceback 模块打印异常信息

#coding=utf-8
import traceback

try:

    print("step1")
    num = 1/0
except:
    traceback.print_exc()

运行结果：

运行结果：
step1
Traceback (most recent call last):
File "C:/Users/Administrator/PycharmProjects/mypro_exception/my01.py", line 7, in <module>
num = 1/0
ZeroDivisionError: division by zero

Process finished with exit code 0

#【示例】使用 traceback 将异常信息写入日志文件

#coding=utf-8
import traceback

try:

    print("step1")
    num = 1/0
except:
    with open("d:/a.log","a") as f:
        traceback.print_exc(file=f)

运行结果：

"D:\Program Files\Python310\python.exe" D:\work\python\four\mypy10.py 
step1

进程已结束,退出代码0