转载自@friskyliu
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BufferedInputStream in =
new
BufferedInputStream(
new
FileInputStream(f));
try
{
byte
[] buffer =
new
byte
[
4096
];
int
len = -
1
;
while
((len = in.read(buffer)) != -
1
)
{
//TODO
}
}
finally
{
in.close();
in =
null
;
}
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适用于任何文件，可以试试100M的文件需要多少时间..很快的...