JSA里的ffi（14）——跨盘符剪切移动文件夹

祝大家新春快乐！

今天论坛上有朋友问JSA里如何跨盘符移动文件夹

过去分享过movefilea方法https://bbs.wps.cn/topic/47851

现在有了ffi

用SHFileOperationW更方便，且可以跨盘符，并支持特殊unicode字符

function aa()
{
    const {SHFileOperationW} = ffi.LoadLibrary("shell32",{
        SHFileOperationW: { returnType: "int32", parameters: ["pointer"]},
    })
    const _SHFILEOPSTRUCTW = ffi.Struct([
        {name: "hwnd", type: "pointer"},
        {name: "wFunc", type: "uint32"},
        {name: "pFrom", type: "u16string"},
        {name: "pTo", type: "u16string"},
        {name: "fFlags", type: "uint32"},
        {name: "fAnyOperationsAborted", type: "int32"},
        {name: "hNameMappings", type: "pointer"},
        {name: "lpszProgressTitle", type: "pointer"},
    ])
    const mv = new _SHFILEOPSTRUCTW({
        hwnd: null,
        wFunc: 1,
        pFrom: "C:\\新建文件夹\0",
        pTo: "D:\\\0",
        fFlags: 0x0010 | 0x0400 | 0x0004,
        fAnyOperationsAborted: 0,
        hNameMappings: null,
        lpszProgressTitle: null,
    })
    console.log(SHFileOperationW(mv))
}

这里有个问题，pFrom pTo这里的文件路径需要以\0分隔，且必须以两个\0结尾

但好像u16string传递时会自动在结尾加一个\0，所以这里我只手动加了一个\0

这样做是否标准，希望大佬指正