\move(100,150,300,350,500,1500)
The line appears at (100,150). After the line has been displayed for half a
second (500 milliseconds) it begins moving towards (300,350) such that it will
arrive at the point a second and a half (1500 milliseconds) after the line
first appeared on screen.
这行字幕开始被显示时的位置在 (100, 150)。在被显示0.5秒后，它开始移动，在被显示1.5秒时移动到 (300, 350)。
Set the origin point used for rotation. This
affects all rotations of the line. The X and Y coordinates are given in
integer script resolution pixels.
设定 文本旋转 使用的中心点，适用于这一行字幕的所有文本旋转， X 和 Y 坐标按脚本分辨率像素计算。
When there is no \org tag in a line, the rotation origin is implicitly the
same as the position anchor point. This means that
the rotation origin will move if the line moves and there is no origin set
with \org. Note that you can not animate the \org tag, you are limited
to a fixed origin if you use it.
当不设定\org标签时，旋转中心就是 位置设定的参考点。这意味着如果不设定\org标签，当行的位置改变时，旋转中心也会随之改变。注意你无法给\org标签加上动画效果，旋转中心必须是固定的。
If the rotation origin is placed on the vanishing point in a 3D scene, 3D
rotations of subtitle line will produce the correct perspective to match the
scene.
如果你将旋转中心放在3D 场景中的消失点处，字幕行的3D 旋转会有正确的和场景相匹配的透视效果。
It's perfectly possible (and occasionally useful) to place the origin point
far outside the actual image; if it is sufficiently far away, doing
appropriately calculated small rotations will seem to move the text along a
straight (or almost straight) line through the image. This is somewhat hard to
control, but can be used to work around format limitations with \move, such as
the inability to do accelerated moves or several moves per line.
把旋转中心放在画面外面是完全可行（有些时候也很有用）的。如果旋转中心足够的远，那么就可以计算出合适的小转动角，让文本看起来是沿直线（或者近似直线）在屏幕上移动。这有些难以掌控，但是可以用来绕过\move的格式限制，比如无法加速移动，无法在每条线上进行几个移动。
There can be at most one \org tag in a single line, if you put more than one
in a single line, only the first is used.
一行最多能放置一个\org标签，如果你放了好几个，那么只有第一个会被使用。
Example
\org(320,240)
Fix the rotation origin at point (320,240).
把旋转中心固定为 (320, 240)。
Placing the rotation origin at a far away point allows you to use slight
\frz rotations to produce “jumping” effects; the text will move up or down
without seeming to rotate.
把旋转中心放在一个很远的点，这样轻微的 \frz 旋转会看起来像“跳跃”效果，文本将上下移动，但是看起来并不像旋转。
Produce a fade-in and fade-out effect. The fadein and fadeout times are
given in milliseconds, ie. 1000 means one second. You can specify fadein or
fadeout as 0 (zero) to not have any fade effect on that end.
会造成淡入淡出效果。 fadein 和 fadeout 按毫秒计算，即千分之一秒。也可以将 fadein 或 fadeout 设定为0，这样在对应的那一头就不会有渐变效果。
Adding a fade effect does not extend the duration of the line, rather the
start or end of the line's display time is used for the fade effect. For this
reason, you should be careful that fadein+fadeout is not greater than the
duration of the line. For example, for a line displayed for 4 seconds, the sum
of fadein+fadeout should not be greater than 4000.
使用渐变效果不会延长字幕的持续时间，渐变效果出现在字幕显示时间的头尾。所以，请注意 fadein 和 fadeout 参数没有超过字幕的持续时间。例如，如果一个字幕行显示时间是4秒，那么 fadein 和 fadeout 的和不应该超过4000。
Example
\fad(1200,250)
Fade in the line in the first 1.2 seconds it is to be displayed, and fade it
out for the last one quarter second it is displayed.
在字幕显示时间的头1.2秒淡入，在尾部0.25秒淡出。
Perform a five-part fade using three alpha values a1, a2 and a3 and four
times t1, t2, t3 and t4.
分为五个阶段的渐变效果，需要三个透明度值 a1 ， a2 和 a3 ，四个时间参数 t1 ， t2 ， t3 和 t4 。
The alpha values are given in decimal and are between 0 and 255, with 0
being fully visible and 255 being invisible. The time values are given in
milliseconds after the start of the line. All seven parameters are required.
(For most common fade effects the [[\fad|ASS_Tags#fade]] tag works fine.)
透明度值是十进制的，介于0和255之间，当其为零时字符时完全不透明的，为255时是完全透明的。时间值单位是毫秒，是字幕行开始后经过的时间。七个参数都是需要的。（`\fad` 标签对于大部分常见的渐变特效都工作良好。）
  
Before t1, the line has alpha a1.
  
Between t1 and t2 the line fades from alpha a1 to alpha a2.
  
Between t2 and t3 the line has alpha a2 constantly.
  
Between t3 and t4 the line fades from alpha a2 to alpha a3.
    
After t4 the line has alpha a3.
  
在 t1 之前，文本透明度是 a1。
  
在 t1 和 t2 之间，文本从透明度 a1 渐变到透明度 a2。
  
在 t2 和 t3 之间，文本透明度保持 a2 不变。
  
在 t3 和 t4 之间，文本从透明度 a2 渐变到透明度 a3。
  
在 t4 之后，文本透明度是 a3。
Example
\fade(255,32,224,0,500,2000,2200)
Starts invisible, fades to almost totally opaque, then fades to almost totally
invisible. First fade starts when the line starts and lasts 500 milliseconds.
Second fade starts 1500 milliseconds later, and lasts 200 milliseconds.
从完全透明，渐变到几乎完全不透明，然后渐变到几乎完全透明。第一个渐变开始于字幕开始时，持续500毫秒。第二个渐变开始于1500毫秒后，持续200毫秒。
\t(<accel>,<style modifiers>)

\t(<t1>,<t2>,<style modifiers>)

\t(<t1>,<t2>,<accel>,<style modifiers>)

Perform a gradual, animated transformation from one style to another. The
style modifiers are other override tags as specified in this reference. Only
a limited set of the override tags are animateable with \t:
从一个样式动画渐变到另外一个。 style modifiers 参数是特效标签。只有一些特效标签可以使用\t动画化。
Note: For \clip and \iclip, only the rectangle versions can be animated. The
vector drawing versions cannot be animated.
注意：对于 \clip 和 \iclip 标签来说，只有方形的形式能够动画化。矢量绘图的形式无法动画化。
Note: Mixing \clip and \iclip in \t tags has undesireable results.
注意：在 \t 标签中混合使用 \clip 和 \iclip 标签很难得到好看的效果。
The t1 and t2 parameters specify the time interval to perform the
transformation over. In the versions without t1 and t2 the transformation
is performed over the entire duration of the line. The times are given in
milliseconds and are relative to the start time of the line. (For the rest of
the description of \t, t1 and t2 are assumed to be specified, or
implicitly be respectively 0 and the duration of the line.)
t1 和 t2 参数指定样式改变的时机。如果不写 t1 和 t2 ，那么样式改变的过程会充满字幕的持续时间。这两个参数按毫秒计算，是相对于字幕开始时间点计算的。（本标签之后的叙述中，假设 t1 和 t2 已经被指定了，或者分别是0和字幕的持续时间。
The accel parameter can be used to make the animation non-linear and instead
follow an exponential curve. An accel parameter of 1 (one) causes the
animation speed to be linear. A value bewteen 0 and 1 causes the animation to
start fast and end slow. A value greater than 1 causes the animation to start
slow and end fast. (For the mathematically inclined, the function is y = x
with x ∈ [0;1] = (t-_t1)/(_t2-_t1), _t being the current time.)
accel 参数可以让动画效果不再是匀速的，而是满足一条指数曲线。该参数为1时，运动速度是恒定的。参数在0和1之间时，运动速度逐渐变慢。参数大于1时，运动速度越来越快。（数学表述是： y= x with x ∈ [0;1] = (t- t1)/(t2- t1 )， t 是当前时间。）
Before t1, the style is as all tags before the \t tag specify. After t2
the style is as all tags before the \t tag, and further overridden by the
given style overrides. Between t1 and t2 the style is gradually animated
between those two points, following the acceleration function described above.
在 t1 时间前，样式是 \t 标签前指定的样式。在 t2 时间后，给定的 style overrides 会覆盖对应的样式，其他样式仍然不变。在 t1 和 t2 时间点之间，样式会从前者按指定的加速度参数渐变到后者。
Example
{\1c&HFF0000&\t(\1c&H0000FF&)}Hello!
The text starts out blue, but fades towards red so it is completely red when the line ends.
文本开始是蓝色的，然后渐变到红色，当这行字幕结束时，渐变刚好完成。
{\an5\t(0,5000,\frz3600)}Wheee
Makes the text rotate 10 times, counterclockwise, lasting for 5 seconds.
让文本旋转10圈，逆时针方向，持续5秒。
{\an5\t(0,5000,0.5,\frz3600)}Wheee
Same as above, but it will start fast and slow down, still doing the 10 rotations in 5 seconds.
同上。但是旋转速度会渐渐变慢，但还是会在5秒钟内刚好旋转10圈。
{\an5\fscx0\fscy0\t(0,500,\fscx100\fscy100)}Boo!
Text starts at zero size, i.e. invisible, then grows to 100% size in both X and Y direction.
字符开始尺寸是0，然后在 X 和 Y方向同时变化到正常大小。
\iclip(<x1>,<y1>,<x2>,<y2>)

Define a rectangle to clip the line, only the part of the line that is inside
the rectangle is visible. The \iclip tag has the opposite effect, it defines
a rectangle where the line is not shown.
确定一个方形区域，只有区域内的字幕是可见的。\iclip 标签效果相反，它确定一个方形区域，只有区域外的字幕是可见的。
The x1, y1, x2 and y2 coordinates are given in script resolution
pixels and are relative to the top-left corner of the video. The coordinates
must be integers, there is no possibility to use non-integer coordinates.
(Increasing the script resolution will not increase the precision, the
clipping always happens on video pixel boundaries.)
x1 ， y1 ， x2 和 y2 坐标是按脚本分辨率计算的，以视频左上角为原点。坐标必须是整数，不能使用非整数的坐标。（提高脚本分辨率并不能提高精度，遮罩区域总是要作用到视频像素上的。
Example
\clip(0,0,320,240)
Assuming 640x480 script resolution, only the part of the line within the top
left quadrant is visible.
假设脚本分辨率是640x480， 只能看见左上四分之一的字幕。
\iclip(0,0,320,240)
Similar to above, but instead the part of the line within the top left
quadrant is hidden.
类似上一个例子，但是相反左上四分之一字幕看不到了。
\clip(<scale>,<drawing commands>)

\iclip(<drawing commands>)

\iclip(<scale>,<drawing commands>)

Use the shape defined by a vector drawing to selectively display (\clip) or
hide (\iclip) parts of the line.
用矢量绘图画一个遮罩区域来选择显示（\clip）或不显示（\iclip）字幕的一部份。
The drawing commands are drawing commands as those used with the \p tag,
the coordinates are given in script resolution pixels and are relative to the
top left corner of the video.
drawing commands 是和\p标签一起使用的绘图指令。坐标按脚本分辨率算，原点是视频左上角。
If the scale is not specified it is assumed to be 1 (one), meaning that
coordinates correspond directly to pixels. The scale works the same way as
the scale for \p drawings.
如果不指定 scale 参数，它将会是默认的1，意味着坐标直接和像素对应。 scale 参数在这里的作用和在\p标签里一样。
Unlike the rectangular clip, the vector drawing clip can not be animated
with \t. If you need to animate a vector drawing clip, you must create
multiple similar subtitle lines with each their own "frame" of the clipping
animation.
不同于方形的遮罩，矢量绘图遮罩无法被\t动画化。如果你想要这种效果，你需要把一行字幕切成许多行，然后设定每一行在这个动画过程中的遮罩区域。
Example
\clip(1,m 50 0 b 100 0 100 100 50 100 b 0 100 0 0 50 0)
Only show the portion of the line within the defined pseudo-circle.
只显示椭圆里面的字幕。
Advanced Substation Alpha also supports some advanced drawing tags that allow
you to draw with vectorial graphics. Certain familiarity with vectors and
splines will make the understanding of this much simpler.
Advanced Substation Alpha 支持很多高级的绘图标签，可以画矢量图形。熟悉矢量和样条会帮助你理解这些内容。
\p<0/1/..> - Toggle drawing mode
Setting this tag to 1 or above enables drawing mode. Text after this override
block will then be interpreted as drawing instructions, and not as actually
visible text. Setting this to zero disables drawing mode, restoring normal
behavior. When turning on, the value might be any integer larger than zero,
and will be interpreted as the scale, in 2^(value-1) mode. This is done to
allow sub-pixel accuracy.
把这个标签的值设为1或更高就会进入绘制模式，标签后的内容会被解读为绘图指令，不会被直接显示。设为0会关闭绘制模式，标签后的内容会如常显示。当进入绘制模式时，值可以取大于0的任何整数，而且2^(值-1)会被当成放大倍数。这么做是为了子像素精确。例如：
e.g.:
(Enables drawing with normal coordinates)
在正常坐标系下进入绘制模式。
(Disables drawing)
退出绘制模式。
(Enables drawing, and resolution is doubled. So drawing to 200,200 will
actually draw to 100,100)
进入绘制模式，分辨率是倍数是2，所以画到点 (200, 200) 实际上画到了点 (100, 100)。
(Enables drawing, and resolution is 8x larger (2^(4-1)). So drawing to 400,400
will actually draw to 50,50)
进入绘制模式，分辨率是倍数是8（2^(4-1)），所以画到点 (400, 400) 实际上画到了点 (50, 50)。
\pbo - Baseline offset
Defines baseline offset for drawing. This is basically an Y offset to all
coordinates.
决定绘制时的基线偏移，偏移发生在 Y 方向。
e.g.:
\pbo-50
(Draws everything 50 pixels above specified)
（绘制时会比既定的位置向上偏50像素）
\pbo100
(Draws everything 100 pixels below specified)
（绘制时会比既定的位置向下偏100像素）
These commands should appear either in a \clip tag (vectorial overload) or
between \p# and \p0, outside override blocks.  For example (taken straight
from the ASS specs):
这些指令要么应该出现在\clip标签（矢量绘图））里，要么应该夹在\p#和\p0之间，特效标签区外部。例如：
    
Square:
    
{\p1}m 0 0 l 100 0 100 100 0 100{\p0}
    
Rounded square:
    
{\p1}m 0 0 s 100 0 100 100 0 100 c{\p0}
    
(c equals to "p 0 0 100 0 100 100" in this case)
    
Circle (almost):
    
{\p1}m 50 0 b 100 0 100 100 50 100 b 0 100 0 0 50 0{\p0}
    
(note that the 2nd 'b' is optional here)
    
{\p1}m 0 0 l 100 0 100 100 0 100{\p0}
    
圆角方块：
    
{\p1}m 0 0 s 100 0 100 100 0 100 c{\p0}
    
（c 在这里相当于 "p 0 0 100 0 100 100"）
    
圆（近似）：
    
{\p1}m 50 0 b 100 0 100 100 50 100 b 0 100 0 0 50 0{\p0}
    
（注意在这里第二个 'b' 是可选的。）
Drawing commands use the primary color for fill and outline color for borders.
They also display shadow. The idea of drawing vectors is that there is an
invisible "cursor" (think of it as the mouse pointer in a drawing program, or
as a pen moving through the image) on the video frame, and you tell it to move
to other positions. As it moves, it draws on the area behind it, and when you
close the line formed, it fills it with the primary color.
绘图指令使用主要填充颜色来填充图形，用边框颜色来填充边框。绘制出的图形也有阴影。绘制矢量的思路是这样的：想象在视频画面上有一个看不见的“光标”（就像绘图程序里的鼠标指针，或者在图片上移动的一支笔），然后你让这个光标移动到另一个位置。当它移动时，它就沿途绘制了曲线。而后你闭合一个形状时，这个图形会被着色成主要填充颜色。
m <x> <y> - Move
Moves the cursor to x,y. If you have an unclosed shape, it will automatically
be closed, as the program assumes that you are now drawing a new, independent
shape. All drawing routines must start with this command.
移动光标到 (x, y)。如果你有一个还没画闭合的图形，它会自动闭合，因为程序认为你这是要去从头开始画一个新的独立的图形。所有的绘图指令都要从这个命令开始。
n <x> <y> - Move (no closing)
Moves the cursor to x,y, without closing the current shape.
移动光标到 (x, y)，但是不闭合当前的图形。
l <x> <y> - Line
Draws a line from the current cursor position to x,y, and moves the cursor
there afterwards.
从当前光标位置到 (x, y) 画一条直线，同时把光标也移动过去。
b <x1> <y1> <x2> <y2> <x3> <y3> - Cubic Bézier curve
Draws a cubic (3rd degree) Bézier curve from the cursor position to (x3,y3),
using (x1,y1) and (x2,y2) as the control points. Check the article on
Wikipedia for more
information about Bézier curves. In this picture taken from that article, P0
is the cursor position, P1 is x1,y1, P2 is x2,y2 and P3 is x3,y3:
画一个三阶贝塞尔曲线，起点是当前光标位置，终点是 (x3, y3)，控制点是 (x1, y1) 和 (x2, y2)。参见 维基百科的文章 来了解贝塞尔曲线。下图中，P0是光标位置，P1是 (x1, y1)，P2是 (x2, y2)，然后P3是 (x3, y3)：
Note that the curve begins at P0, heads towards P1, then arrives at P3 coming
from P2's direction.

注意这条曲线从 P0开始，切线指向 P1，然后结束在P3点，切线背对 P2。
s <x1> <y1> <x2> <y2> <x3> <y3> .. <xN> <yN> - Cubic b-spline
Draws a cubic (3rd degree) uniform b-spline to point N. This must contain at
least 3 coordinates (and is, in that case, the same as b). This basically lets
you chain several cubic Bézier curves together. Check this other article on
Wikipedia for more information.
画一个到 N 点的 cubic b-spline。它最少要包含三个坐标点（这种情况下和 b 相同）。这基本上是把几个贝塞尔曲线连接到一起。请参阅维基百科获得更多信息。
p <x> <y> - Extend b-spline
Extends the b-spline to x,y. This is essentially the same as adding another
pair of coordinates at the end of s.
把 b-spline 扩展到 (x, y)，这本质上相当于给 s 追加一个坐标点。
c - Close b-spline
Closes the b-spline.
闭合 b-spline。
Note: The vector clip visual typesetting
tool only supports the m, l and b
commands, and may corrupt drawings which use the other commands.
注意： vector clip visual typesetting
tool只支持 m，l，b命令，并且对于其他命令可能会绘制错误.