下面___满足x为奇数为真,x为偶数时为假.1 x%2==02 (x/2*2-x)==03 (x%2)4 x%2!=0说明为什么,
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![下面___满足x为奇数为真,x为偶数时为假.1 x%2==02 (x/2*2-x)==03 (x%2)4 x%2!=0说明为什么,](/uploads/image/z/3655184-32-4.jpg?t=%E4%B8%8B%E9%9D%A2___%E6%BB%A1%E8%B6%B3x%E4%B8%BA%E5%A5%87%E6%95%B0%E4%B8%BA%E7%9C%9F%2Cx%E4%B8%BA%E5%81%B6%E6%95%B0%E6%97%B6%E4%B8%BA%E5%81%87.1+x%252%3D%3D02+%28x%2F2%2A2-x%29%3D%3D03+%28x%252%294+x%252%21%3D0%E8%AF%B4%E6%98%8E%E4%B8%BA%E4%BB%80%E4%B9%88%2C)
下面___满足x为奇数为真,x为偶数时为假.1 x%2==02 (x/2*2-x)==03 (x%2)4 x%2!=0说明为什么,
下面___满足x为奇数为真,x为偶数时为假.
1 x%2==0
2 (x/2*2-x)==0
3 (x%2)
4 x%2!=0
说明为什么,
下面___满足x为奇数为真,x为偶数时为假.1 x%2==02 (x/2*2-x)==03 (x%2)4 x%2!=0说明为什么,
1,正相反,x为偶数时,x%2==0为真
2,也不行,比如x=5,5/2=2,2*2-5=-1不为0,式子为假
3.x为奇数时,x%2=1,为真,!真还是真.x为偶数时,x%2=0,为假,!假为假.
4.!x是按位取反,奇数的最低位为1,取反为0,变成偶数,%2后为0,0!=0为假.
所以答案是3