关于syscall调用[]byte的问题 - 求教解答

这里是我编写的函数，当然其他调用函数我也写了。只要是单独uint8\uint16\uint32，包括string类型的引用，基本都没有问题。但现在遇到[]byte，一直报错: func M_TermRecord(control string) ( pData [1000]byte, noUpLoadNum int16, recordBaseOver byte, cardMapOver byte, err error) { var ( nargs uintptr = 5 ) //pData, _ = syscall.ByteSliceFromString("pData") bControl, _ := syscall.BytePtrFromString(control) ret, _, callErr := syscall.Syscall6(uintptr(termRecord), nargs, uintptr(unsafe.Pointer(bControl)), uintptr(unsafe.Pointer(&pData[0])), uintptr(unsafe.Pointer(&noUpLoadNum)), uintptr(unsafe.Pointer(&recordBaseOver)), uintptr(unsafe.Pointer(&cardMapOver)), 0) if callErr != 0 && callErr != syscall.ERROR_IO_PENDING { abort("Failed in func M_TermRecord.", callErr) } if ret == 0 { return pData, noUpLoadNum, recordBaseOver, cardMapOver, errors.New("M_TermRecord: Failed!") } return } 下面是dll函数说明 function TermRecord(Control:Byte;pData: pbyte;var NoUpLoadNum:Word; var RecordBaseOver,CardMapOver:Boolean): integer;stdcall;external 'DllTermCommPrj.dll'; 错误如下: panic: invalid memory address or nil pointer dereference fatal error: panic during malloc [signal 0xc0000005 code=0x0 addr=0x20 pc=0x41d1fa] runtime stack: runtime.panic(0x4b3c80, 0x5b00d8) C:/Users/ADMINI~1/AppData/Local/Temp/2/makerelease529514319/go/src/pkg/runtime/panic.c:233 +0x2b runtime: unexpected return pc for runtime.asmstdcall called from 0x123d09d0 goroutine 1 [syscall]: runtime.cgocall(0x422020, 0x202618) C:/Users/ADMINI~1/AppData/Local/Temp/2/makerelease529514319/go/src/pkg/runtime/cgocall.c:149 +0x1