【进展】JSoup的使用

由于某位大聚聚始终不更新谱面的github，所以我只有另寻他路，直接从网页上抓取谱面相关信息。（要不然再不更新我都没得练了

下面是用JSoup解析得到的数据的一部分：

+++++++++++++++++++++++++++++++
僕らのLIVE 君とのLIFE
Easy
/live/Live_0001.json
★1
95x
+++++++++++++++++++++++++++++++
Normal
/live/Live_0002.json
★4
120x
+++++++++++++++++++++++++++++++
Hard
/live/Live_0003.json
★6
181x
+++++++++++++++++++++++++++++++
Expert
/live/Live_0350.json
★9
348x
+++++++++++++++++++++++++++++++
Master
/live/Live_s0529.json
★11
697x
+++++++++++++++++++++++++++++++
友情ノーチェンジ
Easy
/live/Live_0004.json
★1
91x
+++++++++++++++++++++++++++++++
Normal
/live/Live_0005.json
★4
125x
+++++++++++++++++++++++++++++++
Hard
/live/Live_0006.json
★6
204x
+++++++++++++++++++++++++++++++
Expert
/live/Live_0068.json
★9
359x
+++++++++++++++++++++++++++++++
Master
/live/Live_s0558.json
★11
640x
+++++++++++++++++++++++++++++++
Snow halation
Easy
/live/Live_0007.json
★1
81x
+++++++++++++++++++++++++++++++
Normal
/live/Live_0008.json
★4
139x
+++++++++++++++++++++++++++++++
Hard
/live/Live_0009.json
★6
206x
+++++++++++++++++++++++++++++++
Expert
/live/Live_0075.json
★9
355x
+++++++++++++++++++++++++++++++
Master
/live/Live_s0563.json
★11
551x