已知定义在\(R\)上的奇函数\(f\left( x \right)\)，满足\(f\left( x-2 \right)=-f\left( x \right)\)，且当\(x\in \left[ 0,1 \right]\)时，\(f\left( x \right)={{x}^{2}}+x+\sin x\)，若方程\(f\left( x \right)=m\left( m > 0 \right)\)在区间\(\left[ -4,4 \right]\)上有四个不同的根\({{x}_{1}},{{x}_{2}},{{x}_{3}},{{x}_{4}}\)，则\({{x}_{1}}+{{x}_{2}}+{{x}_{3}}+{{x}_{4}}\)的值为(    )