类的头文件：

#import
<Foundation/Foundation.h>

//FILE_PATH是文件名称。

#define FILE_PATH @"/Users/qianfeng/Desktop/FilePath/等妹有钱了.txt"

@interface QFLrcItem :
NSObject

{

NSString *_time;

NSString *_lrc;

}

-(void)printTime;

-(void)printLrc;

-(void)setTime:(NSString *)newTime;

-(void)setLrc:(NSString *)newLrc;

-(NSString *)getLrc;

-(NSString *)getTime;

-(id)initWithsetsize;

-(void)test;

-(NSString *)getFile;

-(float)getwithTime:(NSString*)timestr;

@end

类的实现.m文件

#import
"QFLrcItem.h"

@implementation QFLrcItem

-(void)printTime{NSLog(@"time:%@",_time);}

-(void)printLrc{NSLog(@"Lrc:%@",_lrc);}

-(id)initWithsetsize{

_lrc = [NSString
alloc];

_time = [NSString
alloc];

return self;

}

-(void)test{

NSString *str = [NSString
stringWithContentsOfFile:FILE_PATH
encoding:NSUTF8StringEncoding
error:nil];

NSLog(@"歌词是：\n %@",str);

}

-(NSString *)getLrc{return
_lrc;}

-(NSString *)getTime{return
_time;}

-(NSString *)getFile{

NSString *lrc = [NSString
stringWithContentsOfFile:FILE_PATH
encoding:NSUTF8StringEncoding
error:nil];

return lrc;

}

-(void)setTime:(NSString *)newTime{_time = newTime;}

-(void)setLrc:(NSString *)newLrc{_lrc = newLrc;}

-(float)getwithTime:(NSString*)timestr{

float time;

float mit,sed,hao;

NSString *flag = @"";

//提取时间单位：分钟

flag = [timestr
substringWithRange,
)];

mit = [flag
floatValue];

//提取时间单位：秒

flag = [timestr
substringWithRange,
)];

sed = [flag
floatValue];

//提取时间单位：毫秒

flag = [timestr
substringWithRange,
)];

hao = [flag
floatValue];

//歌词出现的时间点：time

time = (mit*+sed+hao/);

NSLog(@"mit =  %f",mit);

NSLog(@"sed =  %f",sed);

NSLog(@"hao =  %f",hao);

NSLog(@"sum = %f",time);

return time;

}

@end

main文件：

#import
<Foundation/Foundation.h>

#import
"QFLrcItem.h"

int main(int argc,
const char * argv[])

{

@autoreleasepool {

NSArray *time_lrc = [NSArray arrayWithObject:@""];

QFLrcItem *item = [[QFLrcItem
alloc] init];

NSString *FileStr = [item getFile];

//歌词初步装入数组中：

NSArray *array = [FileStr componentsSeparatedByString:@"\n"];

int count = ;

for (id obj
in array) {

//跳过前四行，留着后面单独处理。

if (count<) {

}

else{

QFLrcItem *newitem = [[QFLrcItem
alloc] init];

NSString *flag = obj;

[newitem
setTime:[flag ]];

[newitem
setLrc:[flag ]];

time_lrc =  [time_lrc
arrayByAddingObject:newitem];

}

count++;

}

//单独处理前面四行。（由于前面四行没有时间）

NSString * str1 =
@"等妹有了钱\n王振州\n  等我有了钱  \n 王振州 \n";

NSLog(@"%@",str1);

float passtime = ;

float nowtime = 4.5;

count = ;

for (id obj
in time_lrc) {

if (count==) {

count++;

continue;

}

nowtime = [obj getwithTime:[obj getTime]];

//暂停时间：

float stoptime = nowtime - passtime;

NSLog(@"stoptime = %f
秒",stoptime);

[obj printTime];

sleep(stoptime);

[obj printLrc];

passtime = nowtime;

}

}

return
;

}

歌词文件：格式txt

[ti:等妹有了钱] 

[ar:王振州] [al:等我有了钱] 

[ar:王振州] 





[00:04.50]等妹有了钱 

[00:07.17]歌词编写：王振州 

[00:11.05]QQ:1259039029 

[00:13.17] 

[01:32.97]他们都说妹非常傻 妹下班就回家 

[01:36.19]事实上妹是月光族 挣钱不够花 

[01:40.26]早出晚归忙工作 不敢去酒吧 

[01:43.58]帅哥都会嫌弃妹 不接妹电话 

[01:47.26] 

[01:47.69]妹年纪越来越大了 还是没人嫁 

[01:50.99]二十好几没老公 急坏了爸妈 

[01:54.60]日子天天在挣扎 没什么变化 

[01:58.35]活着究竟为什么 越想越害怕 

[02:02.05] 

[02:02.51]等妹有了钱 妹想花妹就花 

[02:06.13]抽烟抽中华 吃饭妹点大虾 

[02:09.88]等妹有了钱 妹什么都不怕 

[02:13.56]开车开宝马 购物妹上燕莎 

[02:17.02] 

[02:17.32]等妹有了钱 妹天天去潇洒 

[02:20.92]早上喝早茶 晚上妹泡酒吧 

[02:24.61]等妹有了钱 帅哥就一大把 

[02:28.34]谁不喜欢妹 妹一定踹了她 

[02:31.97] 

[03:02.11]他们都说妹非常傻 妹下班就回家 

[03:04.88]事实上妹是月光族 挣钱不够花 

[03:09.01]早出晚归忙工作 不敢去酒吧 

[03:12.64]帅哥都会嫌弃妹 不接妹电话 

[03:15.90] 

[03:16.29]妹年纪越来越大了 还是没人嫁 

[03:20.01]二十好几没老公 急坏了爸妈 

[03:23.91]日子天天在挣扎 没什么变化 

[03:27.47]活着究竟为什么 越想越害怕 

[03:30.84] 

[03:31.21]等妹有了钱 妹想花妹就花 

[03:34.69]抽烟抽中华 吃饭妹点大虾 

[03:38.33]等妹有了钱 妹什么都不怕 

[03:42.09]开车开宝马 购物妹上燕莎 

[03:45.65] 

[03:45.98]等妹有了钱 妹天天去潇洒 

[03:49.59]早上喝早茶 晚上妹泡酒吧 

[03:53.36]等妹有了钱 帅哥就一大把 

[03:56.90]谁不喜欢妹 妹一定踹了她 

[04:00.23]歌词编写：王振州QQ:1259039029 

[05:30.34]