python 如何try 多次

Question

try：dosometingexcept：os._exit(0)比如执行dosometing时有错误，我想再试两次，如果两次执行还是有错误，那就os._exit(0)退出

Answer 1

importosattempts=0success=Falsewhileattempts<3andnotsuccess:try:	dosomething	success=Trueexcept:	attempts+=1	ifattempts==3:	os._exit(0)

Answer 2

呃，这样？defretry_do(func,retry=None):
try：
func()
except：
ifretry:
retry()
else:
os._exit(0)
defdo_sth():
#dosomething
retry_do(do_sth,retry_do(do_sth,retry_do(do_sth)))