方法说明:
同步版的 lchmod() 。
语法:
fs.lchmodSync(fd, mode)
由于该方法属于fs模块,使用前需要引入fs模块(var fs= require(“fs”) )
接收参数:
fd 文件描述符
mode 文件权限
源码:
fs.lchmodSync = function(path, mode) {
    var fd = fs.openSync(path, constants.O_WRONLY | constants.O_SYMLINK);
    // prefer to return the chmod error, if one occurs,
    // but still try to close, and report closing errors if they occur.
    var err, err2;
    try {
      var ret = fs.fchmodSync(fd, mode);
    } catch (er) {
      err = er;
    }
    try {
      fs.closeSync(fd);
    } catch (er) {
      err2 = er;
    }
    if (err || err2) throw (err || err2);
    return ret;
  };
}