python中的异常捕获怎么用？

http://www.2cto.com/kf/201301/184121.html

http://www.w3cschool.cc/python/python-exceptions.html

try:   

    a=b   

    b=c   

except Exception,e:   #except后面加异常种类

    print Exception,":",e   

 

try: 

    a=b 

    b=c 

except Exception,e: 

    print Exception,":",e