我在剖宫产生完宝宝已经20天了，生完一周都没有一点奶水，到现在每天还是不够宝宝喝，各种汤的水都喝了，而且我的食量也不大，吃不了多少东西，听别人说泌乳都有四个高峰期，因为自己的奶水少，我很想知道自己有没有
I have a C# code that basically uploads a file via FTP protocol (using FtpWebRequest). I\'d like, however, to first determine whether there is a working internet connection before trying to upload the
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