在平面直角坐标系中,任意两点\(A(x_{1},y_{1})\),\(B(x_{2},y_{2})\),规定运算\(①A♁B=(x\)\({\,\!}_{1}\)\(+x\)\({\,\!}_{2}\),\(y\)\({\,\!}_{1}\)\(+y\)\({\,\!}_{2}\)\()\);\(②A⊗B=x\)\({\,\!}_{1}\)\(x\)\({\,\!}_{2}\)\(+y\)\({\,\!}_{1}\)\(y\)\({\,\!}_{2}\);\(③\)当\(x\)\({\,\!}_{1}\)\(=x\)\({\,\!}_{2}\),且\(y\)\({\,\!}_{1}\)\(=y\)\({\,\!}_{2}\)时,\(A=B\),有下列四个命题:\((1)\)若\(A(1,2)\),\(B(2,-1)\),则\(A♁B=(3,1)\),\(A⊗B=0\);\((2)\)若\(A♁B=B♁C\),则\(A=C\);\((3)\)对任意\(A\),\(B\),\(C\)均有\((A♁B)♁C=A♁(B♁C)\)成立\(.\)其中正确命题的个数为\((\) \()\)