Functions:
\t([<t1>, <t2>, ] [<accel>,] <style modifiers>)
<t>(t1是起始时间，t2是终了时间 单位是ms）
<accel> Modifies the linearity of the transformation (optional)
The following calculation is performed to get the coefficient needed to interpolate between the given style modifiers: pow((t-t1)/(t2-t1), accel), where t is the time offset for the subtitle.
The meaning of <accel>
我用了效果不明显那~？？）
1: the transformation is linear
between 0 and 1: will start fast and slow down
greater than 1: will start slow and get faster
As an example, using 2 will make growing the letters (by {\fscx200\fscy200}) look linear rather than slowering.
<style modifiers>Any style modifier which can be animated:
\c,\1-4c,\alpha,\1-4a,\fs,\fr,\fscx,\fscy,\fsp,\bord,\shad,\clip (only the rectangular \clip)
eg1{\t(00,1500,\frx360\fry360,\fs15}天香字幕社(注释：在这里<t1>=00, <t2>=1500, <style modifiers>=\frx360\fry360,\fs15)
eg2{\fs10\t([100,200,][2,]\fs20)}天香字幕社
\move(<x1>, <y1>, <x2>, <y2>[, <t1>, <t2>])
<x1>, <y1>(起始位置）
<x2>, <y2>(终了位置）
<t1>, <t2>(起始时间，终了时间）
eg:{\move(50,55,200,55,0,150)}天香字幕社
\fad(<t1>, <t2>)
<t1>, <t2>(t1淡入时间的长短t2淡出时间的长短）
eg:{\fad(400,400)}天香字幕社
\pos(<x>, <y>) Defaults to \move(<x>, <y>, <x>, <y>, 0, 0)
eg:{\pos(110,60)}天香字幕社
\org(<x>, <y>) Moves the default origin at (x,y). This is useful when moving subtitles in the direction of rotation.
(移动到原始位置）
eg：{\org(110,60)}天香字幕社
\fade(<a1>, <a2>, <a3>, <t1>, <t2>, <t3>, <t4>)
<a1> Alpha value before <t1>
<a2> Alpha value between <t2> and <t3>
<a3> Alpha value after <t4>
<t1>, <t4> Animation beginning, ending time offset [ms]
<t1> - <t2> Alpha value will be interpolated between <a1> and <a2>
<t2> - <t3> Alpha value will be set to <a2>
<t3> - <t4> Alpha value will be interpolated between <a2> and <a3>
eg：{\fade(100,200,500,100,200,300,1200)}天香字幕社
\clip(<x1>, <y1>, <x2>, <y2>)
Clips any drawing outside the rectangle defined by the parameters.
\clip([<scale>,] <drawing commands>)
Clipping against drawn shapes.
<scale> has the same meaning as in the case of \p<scale>
Drawings:
\p<scale>
<scale> Turns on drawing mode and sets the magnification level of the coordinates at the same time. Scale is interpreted as two to the power of (<scale> minus one). For example {\p4} and the coordinate (8,16) will mean the same as {\p1} and (1,2). This feature can be useful for sub-pixel accuracy.
If 0, drawing mode is turned off and the text is interpreted as usual.
\pbo<y>
<y> baseline offset. By default any drawings are positioned on the current baseline. With this value it is possible to move them up or down by <y> pixels. (up: y<0, down: y>0)
Drawing commands:
m <x> <y>
Moves the cursor to <x>, <y>
n <x> <y>
Moves the cursor to <x>, <y> (unclosed shapes will be left open)
l <x> <y>
Draws a line to <x>, <y>
b <x1> <y1> <x2> <y2> <x3> <y3>
3rd degree bezier curve to point 3 using point 1 and 2 as the control points
s <x1> <y1> <x2> <y2> <x3> <y3> .. <xN> <yN>
3rd degree uniform b-spline to point N, must contain at least 3 coordinates
p <x> <y>
extend b-spline to <x>, <y>
c
close b-spline
eg1:{\p1}m 30 60 l 100 30 b 200 100 30 60 10 60 s 10 20 30 60 90 90 p 50 190
滚动字幕:
Dialogue: 0,0:03:30.00,0:04:00.00,Default,,0000,0000,0000,Banner;16;0;0,本片仅供试看之用，请于下载后24小时之内删除，禁止用于任何商业用途，如因私自散布造成的法律问题，A9制作组概不负责.
Dialogue: Marked=0,0:00:01.00,0:00:25.00,MainT,,0000,0000,0000,Scroll Up;10;320;50,AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
注意:上面Banner(右到左)里的30是速度（数值越小越慢）。。。
上面Scroll Up(下到上)中的10;10;50分别是上边（数值越小越高），下边（数值越大越底）,速度（数值越小越快）。。。
Scroll Down
{\fs18}{\t(0,2000,1,\fs24)}从字体大小18变换到24
剪接画面:
{\clip(30,30,400,30}{\move(20,30,500,30,0,45000)}
www.ktxp.com
{\ clip(20,0,620,40)}
天香字幕社内部教程（勿传）
\n New line (carriage return)
\n is ignored by SSA if “smart-wrapping” is enabled
eg. This is the first line\nand this is the second
\N New line (carriage return). This is used by SSA instead of \n if (换行）
“smart-wrapping” is enabled.
\b<0 or 1>加粗参数（\b1加粗 \b0 不加粗）
eg. There is a {\b1}bold {\b0}word here
\i<0 or 1> 倾斜参数（\i1 倾斜 \i0 不倾斜）
eg. There is an {\i1}italicised {\i0}word here
\u<0 or 1>下滑线参数（\i1 加下滑线 \i0 不加下滑线）
eg. There is an {\u1}italicised {\u0}word here
\s<0 or 1>滑线参数（\i1 加下滑线 \i0 不加下滑线）
eg. There is an {\u1}italicised {\u0}word here
\bord<width>围边参数
eg. There is an {\bord10}italicised word here
\shad<depth>字体阴影参数
eg. There is an {\shad10}italicised word here
\be<0 or 1>?
\fn<font name>字体参数
eg. 天香{\fn文鼎古印体繁}字幕社
\fs<font size>字体大小参数1
eg. {\fs16}天香{\fs28}字幕社
\fsc<x or y><percent>字体大小参数2
eg1. {\fscx50}天香字幕社
eg2. {\fscy50}天香字幕社
eg3. {\fscy50}{\fscx50}天香字幕社
eg4.{\fscx200\fscy200}天香字幕社
\fsp<pixels>间隔参数
eg.天香{\fsp3}字幕社
\fr[<x/y/z>]<degrees>旋转参数（很重要）
eg1.天香{\frx120}字幕社
eg2.天香{\fry120}字幕社
eg3.天香{\frz120}字幕社
\fe<charset>文字内码（简体为134）
eg.天香{\fe134}字幕社
\c&H<bbggrr>&颜色参数
eg.天香{\c&HFF&}字幕社
\a<alignment>位置参数1
A value of 1 specifies a left-justified subtitle
A value of 2 specifies a centered subtitle
A value of 3 specifies a right-justified subtitle
Adding 4 to the value specifies a "Toptitle"
Adding 8 to the value specifies a "Midtitle"
eg.天香{\a3}字幕社
\an<alignment>位置参数2
