设x=2.5,a=7,y=4.7,表达式x+a%3*(int)(x+y)%2/4的值是
时间: 2023-05-25 17:04:22 浏览: 108
As an AI language model, I don't have a specific definition of "null", but generally speaking "null" is a term used in programming and computer science to represent an absence of a value or an empty state. In computer programs, null can be used to indicate a variable that has not been initialized or a database field with no data. It can also refer to a condition where a function or operation returns no result or a pointer that doesn't point to any memory location.
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在c语言中,设x=2.5,a=7,y=4.7,表达式x+a%3*(int)(x+y)%2/4的结果是
在C语言中,% 表示取模运算符,其优先级高于加减乘除运算符。先按照运算符优先级进行计算,其计算过程如下:
1. a%3 = 1 (7除以3余1)
2. (int)(x+y) = (int)(2.5+4.7) = 7 (强制类型转换为整型)
3. (int)(x+y)%2 = 1 (7除以2余1)
4. 1/4 = 0 (整数除法)
5. 1*0 = 0
6. x+0 = 2.5
因此,表达式x+a%3*(int)(x+y)%2/4的结果为2.5。
在c语言中,设x=2.5,a=7,y=4.7,表达式x+a%3*(int)(x+y)%2/4的值是
在C语言中,取模运算符的优先级高于加法运算符,因此先计算a%3的结果,即7%3=1。然后将x和y相加,得到7.2,强制类型转换为int类型后,变成7。然后计算(int)(x+y)%2的结果,即7%2=1。最后将1/4的结果为0,因此整个表达式结果为1。
因此,表达式x+a%3*(int)(x+y)%2/4的值为1。
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