1，在AE中创建文件夹：
app.project.items.addFolder("myFolder");
2，判断文件夹是否存在：
function judgeLayer(layername) { for(var i = 1; i <= app.project.numItems; i++) { if(app.project.item(i).name == layername) { return false; } } return true; };
3，找到一个文件夹对象：
function findFolderItemByName(name){ var found = false; for (i = 1; i <= app.project.numItems; i++){ if (app.project.item(i).name == name && app.project.item(i) instanceof FolderItem ){ var myFolder = app.project.item(i); found = myFolder; break } } return found; }
4,，把文件或者文件夹放入一个父级文件夹中：
childFolder.parentFolder = findFolderItemByName("parentFolderName");
5，获取电脑中某个文件夹中的内容：
var folderObj = new Folder("folderPath"); var moveFileList = folderObj.getFiles();
6，导入序列文件到AE中：
var io = new ImportOptions(); io.file = new File("filePath"); io.sequence = true; io.forceAlphabetical = true; mySeq = app.project.importFile(io); myDuration = mySeq.duration;<span style="font-family: Arial, Helvetica, sans-serif;"> </span><span style="font-family: Arial, Helvetica, sans-serif;"> </span>
myDuration参数表示导入的帧数
7，新建Comp：
var myComp = app.project.items.addComp("testComp", 1920, 1080, 1, 150/25, 25);
这里的150/25表示的是，总共150帧，因为addComp函数接受的参数的单位是秒。
8，设置Comp的起始时间：
myComp.displayStartTime = 2/25;
这里是设置起始帧为1
9，将Comp中加Layer：
myComp.layers.add(myLayer);
10，设置Comp中某层的某属性：
myComp.layers.byName("test").Scale.setValue([80,80]);
11，将Comp中某层移到最下：
myComp.layers.byName("test").moveToEnd();
12，设置某层的时间：
var nowF = (inComp.layer(1).outPoint - inComp.layer(1).inPoint); var tarF = timeDuration; var stretchValue = 100*tarF/nowF; inComp.layer(1).stretch = stretchValue;
13，设置某层的matte
myLayer.trackMatteType= TrackMatteType.ALPHA
14，给某层加特效
myLayer.Effects.addProperty("Roughen Edges")("Border").setValue(0); myLayer("Effects")("Roughen Edges")("Scale").setValue(170);
15，加solid层
mySolidLayer = timeCodeComp.layers.addSolid([0,0,0],"solid",1920,1080,1,80/25);
16，给solid层加矩形mask
newMask = mySolidLayer.Masks.addProperty("ADBE Mask Atom"); newMask.maskMode = MaskMode.ADD; newMask.color = [1,1,0]; myProperty = newMask.property("ADBE Mask Shape"); myShape = myProperty.value; myShape.vertices = [[600, 70], [600,164], [38,164],[38,70]]; myShape.closed = true; myProperty.setValue(myShape);
17，加text层
newText = new TextDocument("test"); var theTextLayer = timeCodeComp.layers.addText(newText); theTextLayer.Position.setValue([163,143]); var textProp = theTextLayer.property("Source Text"); var textDocument = textProp.value; textDocument.fontSize=59; textDocument.font = "Microsoft YaHei"; textDocument.justification = ParagraphJustification.CENTER_JUSTIFY; textProp.setValue(textDocument);
18，激活某个comp
myComp.openInViewer();