On 3/30/07, Ren Zhen <fblist at gmail.com> wrote:
>
> 初学python，看django的代码
> 在transaction.py里面看到有
> def commit_manually(func):
>     def _commit_manually(*args, **kw):
>         try:
>             enter_transaction_management()
>             managed(True)
>             return func(*args, **kw)
>         finally:
>             leave_transaction_management()
>
>     return _commit_manually
>
> 这种形式的写法。在用的时候写的是
>
> @transaction.commit_manually
>
> 不知这是什么用法。有@在网上似乎也不好搜:(
>
>
>
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@ 就是个简单的语法糖，

@transaction.commit_manually
def temp():pass

等价于：
def temp():pass
temp = transaction.commit_manually(temp)



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