%隨機(jī)生成在場(chǎng)地（長(zhǎng)length，寬width）中的node_num個(gè)一般節(jié)點(diǎn)，anchor_num個(gè)錨節(jié)點(diǎn)（均勻分布）
%返回節(jié)點(diǎn)的橫縱坐標(biāo)
    function[node_x,node_y,anchor_x,anchor_y]=creatallnode(node_num,anchor_num,length,width)
    [node_x,node_y]=creatnode(node_num,length,width);
    [anchor_x,anchor_y]=creatnode(anchor_num,length,width);