1. 简介
要给代码添加错误检测及异常处理，只需要将其封装在try-except中。
try：后面为打算管理的代码
except：处理错误的代码
2. 示例
import os try: path = ‘E:‘ os.chdir(path) filename = raw_input(‘Enter file name: ‘) fobj = open(filename, ‘r‘) for eachline in fobj: print eachline, fobj.close() except IOError, e: print ‘file open error: ‘, e
运行结果：
Enter file name: hello file open error: [Errno 2] No such file or directory: ‘hello‘
原文：http://www.cnblogs.com/sophia194910/p/5001859.html