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StreamWriter sw = new StreamWriter("D:\Data.pk2");
foreach(String line in GetDataSource())
{
sw.WriteLine(line);
}
先得到GetDataSource().Length不就行了?
string[] data=GetDataSource();
int length=data.Length;
int count=0;
foreach(string line in data)
{
sw.WriteLine(line);
count++;
//进度count/length
}