因为函数的平移是对单个x来说的,就是说f(x)＝2sin(ωx－π/3)实际要化成f(x)＝2sin(ω（x－π/3ω））再来看移了多少,比如向左平移(π/3ω)个单位,就是f(x)＝2sin{ω[（x+π/3ω）－π/3ω]}