小编Igu*_*han的帖子

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1. 我编写了一个函数来复制string到[]byte\xef\xbc\x9a
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func unsafeStringToBytes(xxxxxs string) []byte {\n    p := &xxxxxs\n    sh := (*reflect.StringHeader)(unsafe.Pointer(p))\n    sliceHeader := &reflect.SliceHeader{\n        Data: sh.Data,\n        Len:  sh.Len,\n        Cap:  sh.Len,\n    }\n\n    runtime.GC()\n    time.Sleep(10 * time.Nanosecond)\n\n    b := *(*[]byte)(unsafe.Pointer(sliceHeader))\n    return b\n}\n

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2. 然后，我写一个测试：
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package gc\n\nimport (\n    "bufio"\n    "log"\n    "os"\n    "reflect"\n    "runtime"\n    "testing"\n    "time"\n    "unsafe"\n)\n\nfunc TestWriteLog(t *testing.T) {\n    f1, err := os.Create("./log")\n    if err != nil {\n        log.Fatal(err)\n    }\n    defer f1.Close()\n\n    for i := 0; i <= 1000000; i++ {\n        _, …