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。
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.
若要测试位元栏位，判断特定列举值是否存在，请使用布林逻辑运算子。
To test a bit field to determine whether a specific enumeration value is present, use the Boolean logical operators.
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