JavaScript数据结构和算法之图和图算法(3)

//topSort()函数
function topSort(){
    var stack = [];
    var visited = [];
    for(var i =0;i<this.vertices;i++){
        visited[i] = false;
    }
    for(var i = 0;i<this.vertices;i++){
        if(visited[i] == false){
            this.topSortHelper(i,visited,stack);
        }
    }
    for(var i = 0;i<stack.length;i++){
        if(stack[i] !=undefined && stack[i] != false){
            print(this.vertexList[stack[i]]);
        }
    }
}

//topSortHelper()函数
function topSortHelper(v,visited,stack){
    visited[v] = true;
    for each(var w in this.adj[v]){
        if(!visited[w]){
            this.topSortHelper(visited[w],visited,stack);
        }
    }
    stack.push(v);
}

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