我該如何創(chuàng)建一個(gè)包裝器來(lái)釋放不安全的人。指針在我的代碼中？這是我的 cgo 代碼：//export clientpyfunc clientpy(url *C.char, headersfrompy *C.char, proxy *C.char) unsafe.Pointer {    s := C.GoString(url)    headers := C.GoString(headersfrompy)    p := C.GoString(proxy)    request := UrlGet(s, headers, p)    length := make([]byte, 8)    binary.LittleEndian.PutUint64(length, uint64(len(request)))    return C.CBytes(append(length, request...))}//export FreeCBytefunc FreeCByte(b *unsafe.Pointer) {    C.free(unsafe.Pointer(b))}似乎我無(wú)法釋放python代碼中的內(nèi)存。我正在創(chuàng)建一個(gè)包裝器，以便我可以在python中釋放內(nèi)存，而不是在go內(nèi)部釋放內(nèi)存，這樣我就不會(huì)有懸空的指針。這是我的蟒蛇代碼：from ctypes import cdllimport ctypes, cchardet, jsonfrom bs4 import BeautifulSouplib = cdll.LoadLibrary("./test.so")lib.cclientpy.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_char_p]lib.cclientpy.restype = ctypes.POINTER(ctypes.c_ubyte * 8)""" THERE IS A BIG MEMORY LEAK, BEWARE """free = lib.freefree.argtypes = [ctypes.POINTER(ctypes.c_ubyte * 8)]def newrequest(path, lister={}, proxy=[]):    try:        print(f"proxy: {proxy}")        ptr = lib.cclientpy(path.encode("utf-8"), str(lister).encode("utf-8"), str(proxy).encode("utf-8"))        length = int.from_bytes(ptr.contents, byteorder="little")        data = bytes(ctypes.cast(ptr,                                 ctypes.POINTER(ctypes.c_ubyte * (8 + length))                                 ).contents[8:])        #free(ptr)        lib.FreeCByte(ptr)        print(f'bytes: {bytes(ctypes.cast(ptr,ctypes.POINTER(ctypes.c_ubyte * (8 + length))).contents[8:])}')        return data    except:        pass如何釋放不安全的指針？