MiFaZhan
32 lines
492 B
Go
32 lines
492 B
Go
package hash
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import "os"
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func Sum16ChecksumData(bs []byte) uint16 {
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sum := uint16(0)
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for _, b := range bs {
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sum += uint16(b)
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}
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return sum
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}
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func Sum16ChecksumFile(filePath string) uint16 {
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file, err := os.Open(filePath)
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if err != nil {
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return 0
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}
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defer file.Close()
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// 分块读取
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blockSize := 1024 * 1024
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buf := make([]byte, blockSize)
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sum := uint16(0)
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for {
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n, err := file.Read(buf)
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if err != nil {
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break
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}
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sum += Sum16ChecksumData(buf[:n])
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}
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return sum
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}
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