array symbol 数组符号
You can also reference associative array variables that are assigned from PHP by specifying the key after the '. '(period) symbol.
你也可以通过句号“。”后接数组键的方式来引用从php分配的关联数组变量。
STT_OBJECT The symbol is associated with a data object, such as a variable, an array, etc.
OBJECT表示该符号和一个数据对象相关，比如一个变量、一个数组等。
Some of the safe mobile codes may be rejected to execute, since there is no way to verify statically that the symbol range value of an array subscript expression in PCC.
PCC的数组边界检查存在着由于无法确定数组下标表达式符号值的范围，而造成拒绝执行一些安全的移动代码等问题。
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