平移是向左还是向右？C是坐标点？假定是向左m，则平移后f'(x)=2√2*sin(π/8*x+π/4+m)关于y轴对称f'(-x)=f(x)sin(-π/8*x+π/4+m)=sin(π/8*x+π/4)-π/8*x+π/4+m=π/8*x+π/4（不恒成立）或-π/8*x+π/4+m=π-（π/8*x+π/4）m=π/2自己核对一下题目，把m和h关系理出来
