1·The parenthesis around each digit grouping is vital-it allows us to refer to the matched characters inside those parentheses in the corresponding property.
每个数字组周围的括号非常重要，通过它可以在相应的属性中引用这些括号内的匹配字符。
2·The last token read (closing parenthesis) is not the cause of the error.
最后一次符号读取(结束括号)并不是这个错误的根源。
3·Expressions must not begin with an operator, comma, or closing parenthesis.
不可以用操作符、逗号或闭括号作为表达式的开始符。
4·All binary operators except. period and left parenthesis and left bracket should be separated from their operands by a space.
所有的二元操作符，除了。点和左括号和左方括号应用空格将其与操作数隔开。
5·The configuration parameters that control the sizes of these memory pools are shown in parenthesis.
括号中显示了控制这些内存池大小的配置参数。