try exception 捕获异常
a=1
b=2
try:
a/b
print 2222
except:
print 3333
C:Python27python.exe C:/Users/TLCB/PycharmProjects/untitled/mycompany/thread/p12.py
2222
a=1
b=0
try:
a/b
print 2222
except:
print 3333
C:Python27python.exe C:/Users/TLCB/PycharmProjects/untitled/mycompany/thread/p12.py
3333
def main(req):
print req.session
try:
a=req.session['username']
return render_to_response('login.html')
except:
return redirect('/index/')