Operator precedence grammar is a powerful tool for handling arithmetic expressions.
算符优先文法是处理算术表达式的有力工具。
The arithmetic and concatenation operators have the order of precedence described in the following section, and all have greater precedence than the comparison, logical, and bitwise operators.
算术和串连运算子优先顺序如下节所述，其优先顺序都高于比较运算子、逻辑运算子和位元运算子。
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