设x=2.5,a=7,y=4.7,求x+a%3*( - 知识问答

设x=2.5,a=7,y=4.7,求x+a%3*(int)(x+y)%2/4 要说明先算哪步.最好再说说运算符的优先级.

4个回答

x+a%3*(int)(x+y)%2/4 //先算(int)(x+y),x+y取整得7
=x+a%3*7%2/4 //算a%3=1
=x+1*7%2/4 //算1*7=7
=x+7%2/4 //算7%2=1
=x+1/4 //算1/4=0
=x+0
=2.5

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