从内部存储器创建指向SD卡的符号链接
import 'dart:io';
import 'package:flutter/material.dart';
void main() {
var message = "ok";
try {
var first = '/storage/emulated/0/first';
var second = '/storage/emulated/0/second';
new Link(second).createSync(first);
} catch (e) {
print(e);
message = e.toString();
}
runApp(MaterialApp(home: Scaffold(body: Center(child: Text(message)))),);
}
发生异常。 FileSystemException(FileSystemException: 无法创建链接,路径='/ storage / emulated / 0 / second'(操作系统错误: 不允许操作,errno = 1))