已知直线\(l_{1}\)：\(A_{1}x+B_{1}y+C_{1}=0\)，\(l_{2}\)：\(A_{2}x+B_{2}y+C_{2}=0(A_{1},B_{1},C_{1},A_{2},B_{2},C_{2}\)为常数\()\)，若直线\(l_{1}⊥l_{2}\)，则\(A_{1}A_{2}+B_{1}B_{2}=0.(\)　　\()\)