AS3的语法是什么？ 新 <object> [];

Question

我正在尝试在旧的Flex 3.6项目中使用SoundAS库。 但是，在尝试使用它时，出现了一些语法错误。

Description Resource    Path    Location    Type
1084: Syntax error: expecting identifier before if. SoundManager.as /treefortress/sound line 362    Flex Problem
1084: Syntax error: expecting identifier before if. SoundManager.as /treefortress/sound line 377    Flex Problem
1084: Syntax error: expecting identifier before if. SoundManager.as /treefortress/sound line 440    Flex Problem
1084: Syntax error: expecting identifier before if. SoundManager.as /treefortress/sound line 443    Flex Problem
1084: Syntax error: expecting identifier before return. SoundManager.as /treefortress/sound line 438    Flex Problem
1084: Syntax error: expecting identifier before rightbrace. SoundManager.as /treefortress/sound line 371    Flex Problem
1084: Syntax error: expecting identifier before rightbrace. SoundManager.as /treefortress/sound line 372    Flex Problem
1084: Syntax error: expecting identifier before rightbrace. SoundManager.as /treefortress/sound line 430    Flex Problem
1084: Syntax error: expecting identifier before var.    SoundManager.as /treefortress/sound line 389    Flex Problem
1084: Syntax error: expecting identifier before var.    SoundManager.as /treefortress/sound line 407    Flex Problem
1084: Syntax error: expecting identifier before var.    SoundManager.as /treefortress/sound line 426    Flex Problem
1084: Syntax error: expecting identifier before var.    SoundManager.as /treefortress/sound line 433    Flex Problem
1084: Syntax error: expecting rightbrace before end of program. SoundManager.as /treefortress/sound line 447    Flex Problem
1084: Syntax error: expecting rightbrace before end of program. SoundManager.as /treefortress/sound line 447    Flex Problem
1084: Syntax error: expecting rightbrace before end of program. SoundManager.as /treefortress/sound line 447    Flex Problem
1084: Syntax error: expecting rightbrace before end of program. SoundManager.as /treefortress/sound line 447    Flex Problem
1084: Syntax error: expecting rightbrace before end of program. SoundManager.as /treefortress/sound line 447    Flex Problem
1084: Syntax error: expecting rightbrace before for.    SoundManager.as /treefortress/sound line 408    Flex Problem
1084: Syntax error: expecting rightbrace before if. SoundManager.as /treefortress/sound line 390    Flex Problem
1084: Syntax error: expecting rightbrace before leftbrace.  SoundManager.as /treefortress/sound line 362    Flex Problem
1084: Syntax error: expecting rightbrace before leftbrace.  SoundManager.as /treefortress/sound line 377    Flex Problem
1084: Syntax error: expecting rightbrace before leftbrace.  SoundManager.as /treefortress/sound line 440    Flex Problem
1084: Syntax error: expecting rightbrace before leftbrace.  SoundManager.as /treefortress/sound line 443    Flex Problem
1084: Syntax error: expecting rightbrace before loadCompleted.  SoundManager.as /treefortress/sound line 427    Flex Problem
1084: Syntax error: expecting rightbrace before loadFailed. SoundManager.as /treefortress/sound line 434    Flex Problem
1084: Syntax error: expecting rightbrace before semicolon.  SoundManager.as /treefortress/sound line 363    Flex Problem
1084: Syntax error: expecting rightbrace before semicolon.  SoundManager.as /treefortress/sound line 383    Flex Problem
1084: Syntax error: expecting rightbrace before semicolon.  SoundManager.as /treefortress/sound line 393    Flex Problem
1084: Syntax error: expecting rightbrace before semicolon.  SoundManager.as /treefortress/sound line 418    Flex Problem
1084: Syntax error: expecting rightbrace before semicolon.  SoundManager.as /treefortress/sound line 446    Flex Problem
1100: Syntax error: XML does not have matching begin and end tags.  SoundManager.as /treefortress/sound line 447    Flex Problem
1100: Syntax error: XML does not have matching begin and end tags.  SoundManager.as /treefortress/sound line 447    Flex Problem
1100: Syntax error: XML does not have matching begin and end tags.  SoundManager.as /treefortress/sound line 447    Flex Problem

在SoundManager.as中查看，报告的语法错误不是实际的问题。 相反，所有错误似乎都是由使用诸如new <Object>[];类的东西引起的new <Object>[]; ...例如， if(!groups){ groups = new <SoundManager>[]; } if(!groups){ groups = new <SoundManager>[]; }在第350行。

我不熟悉所使用的语法...它想做什么，为什么它不能在Flash Builder 4.7中工作，如何使它工作？

Answer 1

是的，@ AndreyPopov是正确的。 此变量groups是SoundManager类型的Vector 。 var groups:Vector.<SoundManager>相应的if语句if to groups实例为null ，如果是，则创建一个新实例。