通用产品代码符号，亦称“条形码”，印在出售的商品上，其中含有计算机能识别的信息。
The Universal Product Code symbol, also known as the 'bar code', is printed on products for sale and contains information that a computer can read.
MXML和AS文件的智能代码补全，可以在两种文件间进行代码符号分辨，甚至在mx： Script块和属性值内也没有问题。
Smart code completion for MXML and AS files, with cross-resolution of code symbols between them, even inside of mx: Script blocks and attribute values.
这些小三角对应于控制代码合并的加减符号。
These correspond to the plus and minus signs that control code folding.
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