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【C++】C++运算符优先级

命运之手发布时间：2021-09-09 14:17:23 ，浏览量：2

常见的加减乘除括号这些运算符优先级我们都知道，和数学中的完全一致

但是其它的运算符，像位运算，位移运算，比较运算，自增运算等放一起时，就很容易弄混了

所以有必要理解下运算符之间的优先级关系，或者是勤用括号，因为括号的优先级是最高的

不知道哪个优先级最高时，就用括号把想要先执行的括起来就行了

第一梯队

数组下标，括号，成员运算符（对象，指针）

第二梯队

类型转换，逻辑取非，按位取反，取值取址，自增自减

第三梯队

加减乘除，取余

第四梯队

位移运算

第五梯队

比较运算

第六梯队

位运算

第七梯队

逻辑运算

第八梯队

赋值运算

注意事项

特别要注意的是，位移运算和位运算的优先级是特别低的

当和加减乘除一起使用时，是先执行加减乘除运算的，比如以下运算


	uint16_t ret = 0x00FF


    
        
            
                
                
                    命运之手
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