if you want to open a file that exists or create it otherwise,which of the following is right?
if you want to open a file that exists or create it otherwise,which of the following is right?
a)FileStream fs=new FileStream(“c:\\myfile.txt”,FileMode.Create,FileAccess.Write);
b)FileStream fs=new FileStream(“c:\\myfile.txt”,FileMode.CreateNew,FileAccess.Write);
c)FileStream fs=new FileStream(“c:\\myfile.txt”,FileMode.Open,FileAccess.Write);
d)FileStream fs=new FileStream(“c:\\myfile.txt”,FileMode.OpenOrCreate,FileAccess.Write);
a)FileStream fs=new FileStream(“c:\\myfile.txt”,FileMode.Create,FileAccess.Write);
b)FileStream fs=new FileStream(“c:\\myfile.txt”,FileMode.CreateNew,FileAccess.Write);
c)FileStream fs=new FileStream(“c:\\myfile.txt”,FileMode.Open,FileAccess.Write);
d)FileStream fs=new FileStream(“c:\\myfile.txt”,FileMode.OpenOrCreate,FileAccess.Write);
英語人氣：858 ℃時(shí)間：2020-06-13 15:36:06
優(yōu)質(zhì)解答
最后一個(gè)啊,OpenOrCreate就是文件存在直接打開,不存在則創(chuàng)建該文件的
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