http://ocw.sjtu.edu.cn/G2S/OCW/cn/CourseDetails.ashx?action=GetVideoByCourseID&courseid=398，其他可能替换对应的courseid即可
2.获取并解析
library("RCurl")
library(rjson)
url<-"http://ocw.sjtu.edu.cn/G2S/OCW/cn/CourseDetails.ashx?action=GetVideoByCourseID&courseid=398"
moviejson<-getURL(url)
moviejson<-readLines("C:/Users/dami/Desktop/fuck.txt",encoding = "UFT8")
json_data <- fromJSON(moviejson)
movie<-data.frame("fVideoName","HttpUrl")
names(movie)<-c("fVideoName","HttpUrl")
for (i in 1:length(json_data[2]$Rows))
{
temp<-data.frame(json_data[2]$Rows[i][[1]]$fVideoName,json_data[2]$Rows[i][[1]]$HttpUrl)
names(temp)<-c("fVideoName","HttpUrl")
movie <- rbind(movie,temp)
}
movie<-movie[c(-1),]
row.names(movie)<-as.numeric(row.names(movie))-1
write.table(movie,"C:/Users/dami/Desktop/fuck2.txt",quote=FALSE,col.names = FALSE)
3.结果
统计机器学习下载地址如下：
1 概率基础 http://202.120.1.4:1221/video/7c6cd74f-8f3d-4795-84ce-0695fadf1655.mp4
2 随机变量1 http://202.120.1.4:1221/video/392832e2-9f6e-49a4-bb13-c25204d3a386.mp4
3 随机变量2 http://202.120.1.4:1221/video/6c0c694f-be75-4dde-9ac2-5f4946eefb30.mp4
4 高斯分布 http://202.120.1.4:1221/video/e038aa65-05dc-4ece-85da-594a7db6cbc8.mp4
5 例子 http://202.120.1.4:1221/video/6e665123-2f50-4cdc-9a80-a6db99f78fe6.mp4
6 连续分布 http://202.120.1.4:1221/video/7a18cd5e-9c72-4a0d-a0b0-362f691be4df.mp4
7 jeffrey prior http://202.120.1.4:1221/video/e3fc2659-cfab-4202-8745-090337770aba.mp4
8 scale mixture pisribarin http://202.120.1.4:1221/video/1c9a6a8a-23a7-486d-b1bd-3aa927bcc2ad.mp4
9 statistic interence http://202.120.1.4:1221/video/16c54991-be73-4ea3-a8b9-3ade62724946.mp4
10 Laplace 变换 http://202.120.1.4:1221/video/a310b744-bf78-4dce-b7ad-48fcda9d9796.mp4
11 多元分布定义 http://202.120.1.4:1221/video/74849827-7538-4c79-954c-b537a5d08beb.mp4
12 概率变换 http://202.120.1.4:1221/video/199ac365-f8d1-4000-bc74-13964e98418e.mp4
13 jacobian http://202.120.1.4:1221/video/5623fdec-78e8-4b63-a870-9b474c3ad6c8.mp4
14 wedge production http://202.120.1.4:1221/video/2fef3ec4-c541-48fe-9e73-d7f7b74686b0.mp4
15 Wishart 分布 http://202.120.1.4:1221/video/b363b5f8-9696-4639-bb96-38212e9a7e8a.mp4
16 多元正态分布 http://202.120.1.4:1221/video/b91e2466-7ed0-4844-b9f0-a44603d6c3c9.mp4
17 统计量 http://202.120.1.4:1221/video/db9c8a77-0103-4ab9-b9f3-ff7260c035b6.mp4
18 矩阵元Beta分布 http://202.120.1.4:1221/video/79a39375-813b-4524-9714-37d4586e5a8b.mp4
19 共轭先验性质 http://202.120.1.4:1221/video/a996c2df-cf44-46eb-9ae8-2a71efe5c065.mp4
20 统计量 充分统计量 http://202.120.1.4:1221/video/d0d188e5-d35d-4385-9fde-b2a796308b7d.mp4
21 指数值分布 http://202.120.1.4:1221/video/e8ce28b3-eb9a-4690-8ea9-aac7b782e14f.mp4
22 Entropy http://202.120.1.4:1221/video/f58f3c84-db18-49f2-8916-3080b8deb812.mp4
23 KL distance http://202.120.1.4:1221/video/744a38da-3ec4-4de0-b7c1-cccb6a569b5c.mp4
24 properties http://202.120.1.4:1221/video/3057f698-3696-476c-a57f-964c5eded351.mp4
25 概率不等式1 http://202.120.1.4:1221/video/07ac1efb-b8ff-4e96-adcb-23f3cbefc3a7.mp4
26 概率不等式2 http://202.120.1.4:1221/video/3445fa00-33f9-4619-a55a-24a5deadb828.mp4
27 概率不等式1 http://202.120.1.4:1221/video/cab9b8ce-8b10-4c18-bd42-d6ba0e02efc3.mp4
28 概率不等式2 http://202.120.1.4:1221/video/23a5769a-196c-40dc-a1fa-dbb9b46242bb.mp4
29 概率不等式3 http://202.120.1.4:1221/video/cedd1a5a-5e09-4ac8-a7f1-9c4b7877c6cb.mp4
30 John 引理 http://202.120.1.4:1221/video/5b60492b-8a59-49ec-afda-479764ff4356.mp4
31 概率不等式 http://202.120.1.4:1221/video/09920536-b893-4819-a76b-9e3e0d3fb34d.mp4
32 随机投影 http://202.120.1.4:1221/video/4883d353-09ee-47cf-b1fc-d7e10c5ec65b.mp4
33 Stochastic Convergence-概念 http://202.120.1.4:1221/video/17cfa118-2d3a-41db-aeca-0c8bd06171a8.mp4
34 Stochastic Convergence-性质 http://202.120.1.4:1221/video/371af95f-f767-497d-899a-13347f223823.mp4
35 Stochastic Convergence-应用 http://202.120.1.4:1221/video/cb5275dd-8c8b-409a-aefc-d4a4f7561b05.mp4
36 EM算法1 http://202.120.1.4:1221/video/d6b3cc83-56d1-4260-bcaf-51d338fd144d.mp4
37 EM算法2 http://202.120.1.4:1221/video/94f8b736-d292-4160-99e4-11dfb7d951ea.mp4
38 EM算法3 http://202.120.1.4:1221/video/e29f1139-9def-432c-8c0d-f8387c38c91c.mp4
39 Bayesian Classificat http://202.120.1.4:1221/video/3ed5f9a9-8879-419d-a267-3798d754c91e.mp4
40 Markov Chain Monte carlo1 http://202.120.1.4:1221/video/2cb9b5e8-0836-421e-a914-4b6e182ddd13.mp4
41 Markov Chain Monte carlo2 http://202.120.1.4:1221/video/abba7696-a311-415a-99af-0566da66036e.mp4
4 迅雷下载
5直接在线观看较卡，下载又会给服务器造成较大压力，希望交大能尽早开放这些视频到慕课，网易公开课等
