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说一下实现方法吧。就是用岛3提供的resources接口结合Array.prototyor.reduce

以下是源代码(用了145lab，当伪代码就行)

Box3Entity.prototype.viewFiles = async function (path = "") {
    const files = resources.ls(path);
    let options = files.reduce(
        (l, v) => {
            l.push(
                concat(
                    "[",
                    v.type,
                    "]",
                    v.path.includes("/")?v.path.sliceFrom("/").slice(1):v.path
                )
            );
            return l;
        },
        ["[directory]..."]
    );
    await this.selectDialog(
        "查看文件",
        concat(
            "/",
            path
        ),
        options
    );
    if (!this.dialogResult || this.dialogResult.value == "[directory]...") return;
    const index = this.dialogResult.index - 1;
    const viewFile = files[index];
    if (viewFile.type == "directory") {
        await this.viewFiles(viewFile.path);
        return await this.viewFiles(path);
    } else {
        const viewPath = viewFile.path;
        await this.textDialog(
            "查看文件",
            concat(
                viewPath,
                endline,
                "请在创作端左侧控件区域的文件菜单中查看类型为",
                "“",
                viewFile.type,
                "”",
                "的文件。"
            )
        );
        return await this.viewFiles(path);
    }
}

()