进度条逻辑有问题

[qidizi]

连接到linux ssh协议;
可能是没刷新?然后计算时使用的是未刷新前的文件大小,
在服务器一直在生成文件,大小已改变.所以计算有误?

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host is linux;
connect by ssh;
ie. the file is test.txt;
flush file list now it say file is 5KB;
but sever is writing the test.txt;
by the end is may be 1MB;
don't flush,allway it show text.txt is 5KB ;
down it, the rate of progress is 100%;
but it's not finished.