已知int a=7; float x=3.5,y=4.8;,则表达式x+a%2*(int)(x+y)的值是?
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![已知int a=7; float x=3.5,y=4.8;,则表达式x+a%2*(int)(x+y)的值是?](/uploads/image/z/591221-29-1.jpg?t=%E5%B7%B2%E7%9F%A5int+a%3D7%3B+float+x%3D3.5%2Cy%3D4.8%3B%2C%E5%88%99%E8%A1%A8%E8%BE%BE%E5%BC%8Fx%2Ba%252%2A%28int%29%28x%2By%29%E7%9A%84%E5%80%BC%E6%98%AF%3F)
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已知int a=7; float x=3.5,y=4.8;,则表达式x+a%2*(int)(x+y)的值是?
已知int a=7; float x=3.5,y=4.8;,则表达式x+a%2*(int)(x+y)的值是?
已知int a=7; float x=3.5,y=4.8;,则表达式x+a%2*(int)(x+y)的值是?
答案是11.5.
根据运算符优先级,表达式等价于x+(a%2)*【(int)(x+y)】,a%2是a对2取余,结果为1,x+y结果为8.3,强制转换成整形,去掉小数为8,然后3.5+1*8,会算了吧.