toJson method
Implementation
Map<String, dynamic> toJson() {
final remap = <String, dynamic>{};
// 将 [info] 和 [lrc]合并到一个map中
info.forEach((key, value) {
if (key != "lrc") {
remap[key] = value;
}
});
remap["lrc"] = lrc;
return remap;
}