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37 lines
712 B
37 lines
712 B
8 years ago
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package rest
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import (
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"fmt"
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"strconv"
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)
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//把一个大小转变成方便读的格式
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//human readable file size
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func HumanFileSize(bytes int64, si bool) string {
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var thresh int64 = 1000
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if si {
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thresh = 1024
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}
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if bytes < 0 {
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bytes = 0
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}
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if bytes < thresh {
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return fmt.Sprintf("%dB", bytes)
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}
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var units = []string{"kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"}
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if si {
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units = []string{"KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"}
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}
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var u = 0
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var tmp = float64(bytes)
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var standard = float64(thresh)
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for tmp >= standard && u < len(units)-1 {
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tmp /= float64(standard)
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u++
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}
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numStr := strconv.FormatFloat(tmp, 'f', 1, 64)
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return fmt.Sprintf("%s%s", numStr, units[u])
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}
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