先看下效果
github上做的一个音乐播放器: https://github.com/SorrowX/electron-music
中文歌曲
英文歌曲(如果有翻译的中文给回返回出去)
韩文歌曲
来看下解析歌词的类
class Lyric {
constructor(data) {
this.data = data
this.lrc = data['lrc']['lyric']
this.tlyric = data['tlyric']['lyric']
this.lrcMap = this.getLyricMap(this.lrc)
this.finalLrcMap = this.convertProp(Object.assign({}, this.lrcMap))
this.tlyricMap = this.getLyricMap(this.tlyric)
this.finalTlyricMap = this.convertProp(Object.assign({}, this.tlyricMap))
}
getLyricMap(lrc) {
let key, value, sIdx, eIdx, nsIdx
let ret = {}
if (!lrc || (typeof lrc !== 'string')) return ret
while(lrc) {
sIdx = lrc.indexOf('[')
eIdx = lrc.indexOf(']') + 1
if (sIdx !== -1 && eIdx !== -1) {
key = lrc.slice(sIdx, eIdx)
advance(eIdx)
nsIdx = lrc.indexOf('[')
value = lrc.slice(0, nsIdx)
ret[key] = value.trim()
advance(nsIdx)
} else {
break
}
}
function advance (n) {
lrc = lrc.substring(n)
}
return ret
}
convertProp(obj) {
Object.keys(obj).forEach((str) => {
if (!obj[str]) {
delete obj[str]
} else {
let prop = f(str)
obj[prop] = obj[str]
delete obj[str]
}
})
function f(str) {
str = str.match(/^\[(\d+):(\d+)\.(\d+)/)
return Number(str[1]) * 60 * 1000 + Number(str[2]) * 1000 + Number(str[3])
}
return obj
}
getCurPlayLyric(audioCurTime) {
let audioCurTimeMs = audioCurTime * 1000
let arrTime = Object.keys(this.finalLrcMap)
let i = 0, len = arrTime.length, idx
let hasTranslate = Object.keys(this.finalTlyricMap).length > 0
if (audioCurTimeMs === 0) {
return g.call(this, arrTime[0])
}
if (audioCurTimeMs >= Number(arrTime[len - 1])) {
return g.call(this, arrTime[len - 1])
}
for (; i < len; i++) {
if (
audioCurTimeMs >= Number(arrTime[i - 1]) &&
audioCurTimeMs < Number(arrTime[i])
) {
idx = i - 1
break
}
}
return g.call(this, arrTime[idx])
function g(prop) {
return hasTranslate
? v(this.finalLrcMap[prop]) + ('\n') + v(this.finalTlyricMap[prop])
: v(this.finalLrcMap[prop])
}
function v(val) {
return typeof val === 'undefined' ? '' : val
}
}
}使用姿势超级简单
new Lyric(data)
data就是歌词文件中的对象
使用实例 getCurPlayLyric 方法就ok，参数为 audio.currentTime 单位秒 时间
看下完整demo
let arrData = [
{
"sgc":false,
"sfy":false,
"qfy":false,
"path": "D:\\SorrowX\\2018\\xhl-live-01\\trunk\\web-page\\歌词\\十年.mp3",
"name": "十年",
"lrc":{
"version":4,
"lyric":`[00:00.00] 作曲 : 陈小霞
[00:01.00] 作词 : 林夕
[00:03.700]编曲：唐汉霄
[00:08.910]男：
[00:09.650]
[00:10.590]十年之后
[00:12.510]
[00:13.020]我们是朋友还可以问候
[00:17.800]只是那种温柔
[00:20.840]再也找不到拥抱的理由
[00:25.560]情人最后难免沦为朋友
[00:34.870]
[00:48.850]女：
[00:49.330]
[00:50.730]如果那两个字没有颤抖
[00:54.990]我不会发现我难受
[00:58.660]怎么说出口
[01:00.630]
[01:02.880]也不过是分手
[01:04.920]
[01:07.390]男：
[01:08.040]如果对于明天没有要求
[01:11.710]
[01:12.350]牵牵手就像旅游
[01:15.530]成千上万个门口
[01:17.990]
[01:19.920]总有一个人要先走
[01:22.880]
[01:24.240]女：
[01:24.720]
[01:26.400]怀抱既然不能逗留
[01:30.050]何不在离开的时候
[01:33.280]一边享受一边泪流
[01:40.470]
[01:41.300]十年之前
[01:43.530]我不认识你你不属于我
[01:47.670]我们还是一样
[01:50.400]陪在一个陌生人左右
[01:54.660]走过渐渐熟悉的街头
[01:58.130]男：
[01:58.480]十年之后
[02:00.650]我们是朋友还可以问候
[02:04.810]只是那种温柔
[02:07.500]再也找不到拥抱的理由
[02:11.710]情人最后难免沦为朋友
[02:18.500]
[02:37.240]怀抱既然不能逗留
[02:40.870]何不在离开的时候
[02:43.700]合：
[02:43.900]一边享受一边泪流
[02:51.140]
[02:52.000]十年之前
[02:54.170]我不认识你你不属于我
[02:58.430]我们还是一样
[03:01.100]陪在一个陌生人左右
[03:04.520]男：
[03:05.330]走过渐渐熟悉的街头
[03:09.070]十年之后
[03:11.010]合：
[03:11.430]我们是朋友还可以问候
[03:15.580]只是那种温柔
[03:17.860]男：
[03:18.320]再也找不到拥抱的理由
[03:22.600]情人最后难免沦为
[03:26.670]合：
[03:27.180]朋友
[03:30.050]男：
[03:30.550]
[03:31.320]直到和你做了多年朋友
[03:35.870]才明白我的眼泪
[03:39.170]不是为你而流
[03:41.500]
[03:43.500]也为别人而流
`
},
"tlyric":{
"version":0,
"lyric":null
},
"code":200
},
{
"sgc":true,
"sfy":true,
"qfy":false,
"path": "D:\\SorrowX\\2018\\xhl-live-01\\trunk\\web-page\\歌词\\Buttons-The Pussycat Dolls-b.mp3",
"name": "Buttons-The Pussycat Dolls-b",
"transUser":{
"id":19538200,
"status":0,
"demand":1,
"userid":52624747,
"nickname":"000落雪0",
"uptime":1431834889776
},
"lrc":{
"version":13,
"lyric":`[00:00.00] 作曲 : Nicole Scherzinger & Sean Garrett & Jamal Jones & Jason Perry
[00:19.530]I'm telling you loosen up my buttons baby (Uh huh)
[00:22.840]But you keep fronting (Uh)
[00:24.540]Saying what you going to do to me (Uh huh)
[00:27.010]But I ain't seen nothing (Uh)
[00:28.930]I'm telling you loosen up my buttons baby (Uh huh)
[00:31.190]But you keep fronting (Uh)
[00:33.500]Saying what you going to do to me (Uh huh)
[00:35.780]But I ain't seen nothing (Uh)
[00:39.740]Typical
[00:40.400]Hardly the type I fall for
[00:42.070]I'm liking the physical
[00:44.120]Don't leave me asking for more
[00:45.640]I'm a sexy mama (Mama)
[00:48.070]Who knows just how to get what I want and (Want and)
[00:50.730]What I want to do is spring this on you (On you)
[00:52.990]Back up all of the things that I told you (Told you)
[00:56.780]You been saying all the right things all along
[01:00.450]But I can't seem to get you over here to help take this off
[01:04.950]Baby, can't you see?
[01:06.870]How these clothes are fitting on me
[01:09.090]And the heat coming from this beat
[01:11.370]I'm about to blow
[01:13.230]I don't think you know
[01:14.700]I'm telling you loosen up my buttons baby (Uh huh)
[01:17.020]But you keep fronting (Uh)
[01:19.240]Saying what you going to do to me (Uh huh)
[01:22.020]But I ain't seen nothing (Uh)
[01:24.180]I'm telling you loosen up my buttons baby (Uh huh)
[01:26.400]But you keep fronting (Uh)
[01:28.480]Saying what you going to do to me (Uh huh)
[01:31.000]But I ain't seen nothing (Uh)
[01:33.430]You say you're a big boy
[01:35.560]But I can't agree
[01:37.730]'Cause the love you said you had
[01:40.090]Ain't been put on me
[01:41.910]I wonder
[01:43.250]If I'm just too much for you
[01:44.650]Wonder
[01:45.520]If my kiss don't make you just
[01:46.480]Wonder
[01:47.570]What I got next for you
[01:48.840]What you want to do? (Do)
[01:51.930]Take a chance to recognize that this could be yours
[01:53.710]I can see, just like most guys that your game don't please
[01:59.890]Baby, can't you see?
[02:01.260]How these clothes are fitting on me
[02:03.240]And the heat coming from this beat
[02:05.750]I'm about to blow
[02:07.360]I don't think you know
[02:08.880]I'm telling you loosen up my buttons baby (Uh huh)
[02:11.290]But you keep fronting (Uh)
[02:13.590]Saying what you going to do to me (Uh huh)
[02:15.560]But I ain't seen nothing (Uh)
[02:18.100]I'm telling you loosen up my buttons baby (Uh huh)
[02:20.370]But you keep fronting (Uh)
[02:22.690]Saying what you going to do to me (Uh huh)
[02:25.180]But I ain't seen nothing (Uh)
[02:46.750]I'm a make you loosen up my buttons babe
[02:47.960]Loosen up my buttons babe
[02:49.980]Why don't you loosen up my buttons babe
[02:52.000]Loosen up my buttons babe
[02:54.310]I'm a make you loosen up my buttons babe
[02:56.690]Loosen up my buttons babe
[02:58.750]Why don't you loosen up my buttons babe
[03:01.170]Loosen up my buttons babe
[03:03.200]I'm telling you loosen up my buttons baby (Uh huh)
[03:05.660]But you keep fronting (Uh)
[03:07.980]Saying what you going to do to me (Uh huh)
[03:10.070]But I ain't seen nothing (Uh)
[03:12.230]I'm telling you loosen up my buttons baby (Uh huh)
[03:14.460]But you keep fronting (Uh)
[03:16.990]Saying what you going to do to me (Uh huh)
[03:19.210]But I ain't seen nothing (Uh)
[03:21.480]I'm telling you loosen up my buttons baby (Uh huh)
[03:24.290]But you keep fronting (Uh)
[03:26.240]Saying what you going to do to me (Uh huh)
[03:28.390]But I ain't seen nothing (Uh)
[03:30.500]I'm telling you loosen up my buttons baby (Uh huh)
[03:32.750]But you keep fronting (Uh)
[03:35.100]Saying what you going to do to me (Uh huh)
[03:37.730]But I ain't seen nothing (Uh)
`
},
"tlyric":{
"version":1,
"lyric":`[by:000落雪0]
[00:19.530]我让你松开我的纽扣 宝贝
[00:22.840]但是你站在我面前
[00:24.540]问我 你将对我做些什么
[00:27.010]但是我什么也没说
[00:28.930]我让你你松开我的纽扣 宝贝
[00:31.190]但是你站在我面前
[00:33.500]问我 你将对我做些什么
[00:35.780]但是我什么也没说
[00:39.740]典型的
[00:40.400]你几乎就是我喜欢的类型
[00:42.070]我喜欢你的身体
[00:44.120]不要离开我，向我索取更多
[00:45.640]我是火辣的女孩
[00:48.070]人们都知道怎样弄到我想要的
[00:50.730]我想做的是向你涌出我的感情
[00:52.990]实现所有我告诉你的事情
[00:56.780]你曾说所有对的事情自始至终
[01:00.450]但是我似乎不能叫你过来帮我脱掉衣服
[01:04.950]宝贝，你不知道吗？
[01:06.870]这些衣服是多么的适合我
[01:09.090]并且热度来自于节拍
[01:11.370]我快喘不过气来了
[01:13.230]我不认为你知道
[01:14.700]我让你松开我的纽扣 宝贝
[01:17.020]但是你站在我面前
[01:19.240]问我 你将对我做些什么
[01:22.020]但是我什么也没说
[01:24.180]我让你松开我的纽扣 宝贝
[01:26.400]但是你站在我面前
[01:28.480]问我 你将对我做些什么
[01:31.000]但是我什么也没说
[01:33.430]你说你是个大男孩
[01:35.560]但是我不同意
[01:37.730]因为你说过你爱我
[01:40.090]别在我面前装
[01:41.910]我想
[01:43.250]如果我对你来说很合适
[01:44.650]我想
[01:45.520]如果我吻你能让你也
[01:46.480]我想
[01:47.570]下一步我该怎么做
[01:48.840]你想让我怎么做？
[01:51.930]给你一个机会辨认出这些是你的
[01:53.710]我敢说，就跟大多数人认为的那样你的游戏根本不讨人喜欢
[01:59.890]宝贝，你不知道吗？
[02:01.260]这些衣服是多么的适合我
[02:03.240]并且热度来自于节拍
[02:05.750]我快喘不过气来了
[02:07.360]我不认为你知道
[02:08.880]我让你松开我的纽扣 宝贝
[02:11.290]但是你站在我面前
[02:13.590]问我 你将对我做些什么
[02:15.560]但是我什么也没说
[02:18.100]我让你松开我的纽扣 宝贝
[02:20.370]但是你站在我面前
[02:22.690]问我 你将对我做些什么
[02:25.180]但是我什么也没说
[02:46.750]我一再让你解开我的纽扣 宝贝
[02:47.960]解开我的纽扣 宝贝
[02:49.980]你为什么不肯解开我的纽扣 宝贝
[02:52.000]解开我的纽扣 宝贝
[02:54.310]我一再让你解开我的纽扣 宝贝
[02:56.690]解开我的纽扣 宝贝
[02:58.750]你为什么不肯解开我的纽扣 宝贝
[03:01.170]解开我的纽扣 宝贝
[03:03.200]我让你松开我的纽扣 宝贝
[03:05.660]但是你站在我面前
[03:07.980]问我 你将对我做些什么
[03:10.070]但是我什么也没说
[03:12.230]我让你松开我的纽扣 宝贝
[03:14.460]但是你站在我面前
[03:16.990]问我 你将对我做些什么
[03:19.210]但是我什么也没说
[03:21.480]我让你松开我的纽扣 宝贝
[03:24.290]但是你站在我面前
[03:26.240]问我 你将对我做些什么
[03:28.390]但是我什么也没说
[03:30.500]我让你松开我的纽扣 宝贝
[03:32.750]但是你站在我面前
[03:35.100]问我 你将对我做些什么
[03:37.730]但是我什么也没说
`
},
"code":200
},
{
"sgc":true,
"sfy":false,
"qfy":false,
"path": "D:\\SorrowX\\2018\\xhl-live-01\\trunk\\web-page\\歌词\\和寂寞说分手-爱戴-b.mp3",
"name": "和寂寞说分手",
"lrc":{
"version":4,
"lyric":`[00:00.00] 作曲 : 和寂寞说分手（粤语版）
[00:02.25]和寂寞說分手
[00:05.86]和快樂 Say Don't Go
[00:20.13][00:08.96]
[00:20.56]停留在十字路口
[00:26.01]心情在四處飄遊
[00:29.90]告別曾經的溫柔
[00:32.11]讓一切再從頭
[00:37.31]收拾曾經的心情
[00:39.74]讓心不在四處飄遊
[00:42.95]忘記曾經的逗留
[00:47.19]改變一些節奏
[00:54.70]和寂寞說分手
[00:58.41]和快樂 Say Don't Go
[01:01.89]
[01:02.12]如果說曾經是擁有
[01:05.82]又何苦會淚流
[01:09.56]和寂寞說分手
[01:12.97]拋棄所有的所有
[01:17.07]原來曾擁有的一切
[01:20.82]全都可以放棄
[01:23.80]我的自由
[01:34.00]
[01:34.18]不要說難以忘記
[01:35.90]那是懦弱的理由
[01:39.20]語不驚人死不休
[01:43.28]這次是自己
[01:46.21]徹底放自己自由
[01:52.93]
[01:53.12]和寂寞說分手
[01:56.40]和快樂 Say Don't Go
[02:00.17]如果說曾經是擁有
[02:03.80]又何苦會淚流
[02:07.67]和寂寞說分手
[02:11.11]拋棄所有的所有
[02:15.20]原來曾擁有的一切
[02:18.99]全都可以放棄
[02:21.95]我的自由
[02:27.24]
[02:30.27]如果新的開始
[02:32.12]還是又想回頭
[02:35.68]那就承受更多的難受
[02:44.55]
[02:45.30]和寂寞說分手
[02:48.84]和快樂 Say Don't Go
[02:52.81]如果說曾經是擁有
[02:56.43]又何苦會淚流
[03:00.22]和寂寞說分手
[03:03.65]拋棄所有的所有
[03:07.60]原來曾擁有的一切
[03:11.41]全都可以放棄
[03:14.30]我的自由
[03:19.05]全都可以放棄
[03:24.45]我的自由
`
},
"tlyric":{
"version":0,
"lyric":null
},
"code":200
},
{
"sgc":false,
"sfy":false,
"qfy":false,
"path": "D:\\SorrowX\\2018\\xhl-live-01\\trunk\\web-page\\歌词\\江南Style-信-b.mp3",
"name": "江南Style-信",
"lrc":{
"version":7,
"lyric":`[00:00.00] 作曲 : PSY/유건형(Yoo Gun hyung)
[00:00.341] 作词 : PSY
[00:01.23]编曲 : 刘颖嵘
[00:20.58]오빤 강남스타일
[00:24.59]강남스타일
[00:29.82]낮에는 따사로운 인간적인 여자
[00:33.08]커피 한잔의 여유를 아는 품격 있는 여자
[00:36.71]밤이 오면 심장이 뜨거워지는 여자
[00:40.25]그런 반전 있는 여자
[00:43.98]나는 사나이
[00:45.61]낮에는 너만큼 따사로운 그런 사나이
[00:49.15]커피 식기도 전에 원샷 때리는 사나이
[00:52.94]밤이 오면 심장이 터져버리는 사나이
[00:56.45]그런 사나이
[00:58.80]아름다워 사랑스러워
[01:02.25]그래 너 hey 그래 바로 너 hey
[01:06.19]아름다워 사랑스러워
[01:09.71]그래 너 hey 그래 바로 너 hey
[01:13.63]지금부터 갈 데까지 가볼까
[01:21.92]오빤 강남스타일 강남스타일
[01:27.01]오오오오 오빤 강남스타일
[01:33.14]강남스타일
[01:34.43]오오오오 오빤 강남스타일
[01:38.02]Eh- Sexy Lady
[01:41.65]오오오오 오빤 강남스타일
[01:45.23]Eh- Sexy Lady
[01:48.98]오오오오
[02:00.18]정숙해 보이지만 놀 땐 노는 여자
[02:03.57]이때다 싶으면 묶었던 머리 푸는 여자
[02:07.12]가렸지만 웬만한 노출보다 야한 여자
[02:10.63]그런 감각적인 여자
[02:14.38]나는 사나이
[02:16.13]점잖아 보이지만 놀 땐 노는 사나이
[02:19.64]때가 되면 완전 미쳐버리는 사나이
[02:23.28]근육보다 사상이 울퉁불퉁한 사나이
[02:26.94]그런 사나이
[02:29.31]아름다워 사랑스러워
[02:32.65]그래 너 hey 그래 바로 너 hey
[02:36.49]아름다워 사랑스러워
[02:40.04]그래 너 hey 그래 바로 너 hey
[02:43.73]지금부터 갈 데까지 가볼까
[02:51.90]오빤 강남 스타일 강남스타일
[02:57.45]오오오오 오빤 강남스타일
[03:03.83]강남스타일
[03:04.69]오오오오 오빤 강남스타일
[03:08.44]Eh- Sexy Lady
[03:12.11]오오오오 오빤 강남스타일
[03:15.87]Eh- Sexy Lady
[03:19.40]오오오오
[03:23.22]뛰는 놈 그 위에 나는 놈
[03:26.06]baby baby
[03:27.44]나는 뭘 좀 아는 놈
[03:30.21]뛰는 놈 그 위에 나는 놈
[03:33.36]baby baby
[03:34.23]나는 뭘 좀 아는 놈
[03:36.57]You know what I'm saying
[03:56.46][03:41.77]Eh- Sexy Lady
[04:00.16][03:45.29]오오오오 오빤 강남스타일
[04:03.75][03:48.87]Eh- Sexy Lady
[04:07.43][03:52.73]오오오오 오빤 강남스타일
`
},
"tlyric":{
"version":3,
"lyric":`[00:20.58]哥哥是 江南style
[00:24.59]江南style
[00:29.82]白天是充满温暖人情味的女人
[00:33.08]有品位 也懂得享受咖啡的女人
[00:36.71]如果到了晚上 心脏是火热热的女人
[00:40.25]有那种反差性格的女人
[00:43.98]我是男子汉
[00:45.61]白天是像你那样温暖的男子汉
[00:49.15]就算喝咖啡也是干杯的男子汉
[00:52.94]如果到了晚上 心跳开始加快的男子汉
[00:56.45]是那样的男子汉
[00:58.80]美丽的 可爱的
[01:02.25]没错 是你 Hey 没错就是你 Hey
[01:06.19]美丽的 可爱的
[01:09.71]没错 是你 Hey 没错就是你 Hey
[01:13.63]现在开始到冲破极限之前 一起走吧
[01:21.92]哥哥是 江南style 江南style
[01:27.01]哥哥是 江南style
[01:33.14]江南style
[01:34.43]哥哥是 江南style
[01:41.65]哥哥是 江南style
[01:48.98]Oh Oh Oh Oh
[02:00.18]虽然看似文静却很懂得玩乐的女人
[02:03.57]时机到了 发束也会放开的女人
[02:07.12]虽然遮掩 但比起裸露还要更性感的女人
[02:10.63]有那种性感魅力的女人
[02:14.38]我是男子汉
[02:16.13]虽然看似稳重却很懂得玩乐的男子汉
[02:19.64]时机到了 会完全失控的男子汉
[02:23.28]思想比肌肉更加发达的男子汉
[02:26.94]是那样的男子汉
[02:29.31]美丽的 可爱的
[02:32.65]没错 是你 Hey 没错就是你 Hey
[02:36.49]美丽的 可爱的
[02:40.04]没错 是你 Hey 没错就是你 Hey
[02:43.73]现在开始到冲破极限之前 一起走吧
[02:51.90]哥哥是 江南style
[02:57.45]哥哥是 江南style
[03:03.83]江南style
[03:04.69]哥哥是 江南style
[03:12.11]哥哥是 江南style
[03:19.40]Oh Oh Oh Oh
[03:23.22]一山还有一山高
[03:27.44]我是知道些什么的人
[03:30.21]一山还有一山高
[03:34.23]我是知道些什么的人
[04:00.16][03:45.29]哥哥是 江南style
[04:07.43][03:52.73]哥哥是 江南style`
},
"code":200
}
]
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>song</title>
<style>
.box {
width: 400px;
margin: 240px auto;
}
.btn {
display: inline-block;
width: 80px;
height: 24px;
border: 1px solid #eee;
margin-bottom: 20px;
}
.audio {
display: block;
}
.span {
margin-left: 20px;
}
.pre {
font-family: sans-serif;
}
</style>
</head>
<body>
<div class="box">
<button id="btn" class="btn">切歌</button>
<span id="span" class="span"></span>
<audio id="audio" class="audio" controls="controls"></audio>
<pre id="lyric" class="pre"></pre>
</div>
<script src="./json.js"></script>
<script>
let ly = null
let cutSong = function() {
let data = arrData[Math.floor(Math.random() * arrData.length)]
audio.src = data.path
span.innerHTML = `歌曲: ${data.name}`
ly = new Lyric(data)
audio.play()
}
class Lyric {
constructor(data) {
this.data = data
this.lrc = data['lrc']['lyric']
this.tlyric = data['tlyric']['lyric']
this.lrcMap = this.getLyricMap(this.lrc)
this.finalLrcMap = this.convertProp(Object.assign({}, this.lrcMap))
this.tlyricMap = this.getLyricMap(this.tlyric)
this.finalTlyricMap = this.convertProp(Object.assign({}, this.tlyricMap))
}
getLyricMap(lrc) {
let key, value, sIdx, eIdx, nsIdx
let ret = {}
if (!lrc || (typeof lrc !== 'string')) return ret
while(lrc) {
sIdx = lrc.indexOf('[')
eIdx = lrc.indexOf(']') + 1
if (sIdx !== -1 && eIdx !== -1) {
key = lrc.slice(sIdx, eIdx)
advance(eIdx)
nsIdx = lrc.indexOf('[')
value = lrc.slice(0, nsIdx)
ret[key] = value.trim()
advance(nsIdx)
} else {
break
}
}
function advance (n) {
lrc = lrc.substring(n)
}
return ret
}
convertProp(obj) {
Object.keys(obj).forEach((str) => {
if (!obj[str]) {
delete obj[str]
} else {
let prop = f(str)
obj[prop] = obj[str]
delete obj[str]
}
})
function f(str) {
str = str.match(/^\[(\d+):(\d+)\.(\d+)/)
return Number(str[1]) * 60 * 1000 + Number(str[2]) * 1000 + Number(str[3])
}
return obj
}
getCurPlayLyric(audioCurTime) {
let audioCurTimeMs = audioCurTime * 1000
let arrTime = Object.keys(this.finalLrcMap)
let i = 0, len = arrTime.length, idx
let hasTranslate = Object.keys(this.finalTlyricMap).length > 0
if (audioCurTimeMs === 0) {
return g.call(this, arrTime[0])
}
if (audioCurTimeMs >= Number(arrTime[len - 1])) {
return g.call(this, arrTime[len - 1])
}
for (; i < len; i++) {
if (
audioCurTimeMs >= Number(arrTime[i - 1]) &&
audioCurTimeMs < Number(arrTime[i])
) {
idx = i - 1
break
}
}
return g.call(this, arrTime[idx])
function g(prop) {
return hasTranslate
? v(this.finalLrcMap[prop]) + ('\n') + v(this.finalTlyricMap[prop])
: v(this.finalLrcMap[prop])
}
function v(val) {
return typeof val === 'undefined' ? '' : val
}
}
}
audio.addEventListener('timeupdate', () => {
lyric.innerHTML = ly.getCurPlayLyric(audio.currentTime)
}, false)
btn.addEventListener('click', () => {
cutSong()
}, false)
</script>
</body>
</html>
来源：oschina
链接：https://my.oschina.net/u/4298485/blog/3936988