#?-*-?coding:?utf-8?-*-
“““
Created?on?Wed?Nov??8?09:22:22?2017

@author:?brucelau
“““
import?re
#%%?define?a?function?to?transform?the?date?format
def?time_format（cur）:
????time?=?cur.split（‘:‘）
????hour?=?str（int（time[0]）//60）
????minute?=?str（int（time[0]）-int（time[0]）//60*60）
????second?=?time[1]
????return?hour+‘:‘+minute+‘:‘+second?+‘000‘????
????
def?txt2srt（filename）:
????#%%?generate?new?titles
????num?=?re.sub（“\D“?““?filename）
????f1?=?open（filename）
????f2?=?[]
????lines?=?f1.readlines（）
????for?idxtime?in?enumerate（lines）:
????????if?idx%2==0?&?idx????????????cur?=?lines[idx]
????????????try:
????????????????nex?=?lines[idx+2]
????????????????t1?=?time_format（cur）.replace（‘\n‘‘‘）
????????????????t2?=?time_format（nex）.replace（‘\n‘‘‘）
????????????????t3?=?t1+“?-->?“+t2
????????????????f2.append（int（idx/2+1））?#?order?number
????????????????f2.append（t3）???#?time?
????????????????f2.append（lines[idx+1]）?#?titles????
????????????except?IndexError:
????????????????continue
????f1.close（）
????#%%?save?the?new?titles?to?.txt?file
????srt_name?=?num?+?‘.?‘+‘Convex?Optimization?I?Lecture?‘+num+‘.srt‘
????title3?=?open（srt_name‘w‘）?
????title3.writelines（[“%s\n“?%?item??for?item?in?f2]）

#%%?genertate?txt?file?for?saving?the?titles
#for?i?in?range（19）:
#????title3?=?open（‘title‘+str（i+1）+‘.txt‘‘w‘）?

for?i?in?range（19）:
????txtname?=?‘titles\\title‘+str（i+1）+‘.txt‘
????txt2srt（txtname）

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件?????154739??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\1.?Convex?Optimization?I?Lecture?1.srt

?????文件?????139252??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\10.?Convex?Optimization?I?Lecture?10.srt

?????文件?????137820??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\11.?Convex?Optimization?I?Lecture?11.srt

?????文件?????134758??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\12.?Convex?Optimization?I?Lecture?12.srt

?????文件?????141762??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\13.?Convex?Optimization?I?Lecture?13.srt

?????文件?????131482??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\14.?Convex?Optimization?I?Lecture?14.srt

?????文件?????142768??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\15.?Convex?Optimization?I?Lecture?15.srt

?????文件?????135750??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\16.?Convex?Optimization?I?Lecture?16.srt

?????文件?????146875??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\17.?Convex?Optimization?I?Lecture?17.srt

?????文件?????142817??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\18.?Convex?Optimization?I?Lecture?18.srt

?????文件?????140400??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\19.?Convex?Optimization?I?Lecture?19.srt

?????文件?????122249??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\2.?Convex?Optimization?I?Lecture?2.srt

?????文件?????134658??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\3.?Convex?Optimization?I?Lecture?3.srt

?????文件?????124727??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\4.?Convex?Optimization?I?Lecture?4.srt

?????文件?????134176??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\5.?Convex?Optimization?I?Lecture?5.srt

?????文件?????124147??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\6.?Convex?Optimization?I?Lecture?6.srt

?????文件?????139824??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\7.?Convex?Optimization?I?Lecture?7.srt

?????文件?????137183??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\8.?Convex?Optimization?I?Lecture?8.srt

?????文件?????139225??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\9.?Convex?Optimization?I?Lecture?9.srt

?????文件???????1478??2017-11-08?11:29??斯坦福大學(xué)凸優(yōu)化字幕\make_srt.py

?????文件??????94554??2017-11-08?11:13??斯坦福大學(xué)凸優(yōu)化字幕\titles\title1.txt

?????文件??????85022??2017-11-08?11:16??斯坦福大學(xué)凸優(yōu)化字幕\titles\title10.txt

?????文件??????84289??2017-11-08?11:16??斯坦福大學(xué)凸優(yōu)化字幕\titles\title11.txt

?????文件??????82275??2017-11-08?11:17??斯坦福大學(xué)凸優(yōu)化字幕\titles\title12.txt

?????文件??????86798??2017-11-08?11:17??斯坦福大學(xué)凸優(yōu)化字幕\titles\title13.txt

?????文件??????80495??2017-11-08?11:17??斯坦福大學(xué)凸優(yōu)化字幕\titles\title14.txt

?????文件??????87358??2017-11-08?11:18??斯坦福大學(xué)凸優(yōu)化字幕\titles\title15.txt

?????文件??????83084??2017-11-08?11:18??斯坦福大學(xué)凸優(yōu)化字幕\titles\title16.txt

?????文件??????90269??2017-11-08?11:19??斯坦福大學(xué)凸優(yōu)化字幕\titles\title17.txt

?????文件??????87462??2017-11-08?11:19??斯坦福大學(xué)凸優(yōu)化字幕\titles\title18.txt

............此處省略15個(gè)文件信息