在类中,vector不可以直接用下面的方式初始化 这应该是因为编译器无法知道这是函数还是vector定义, 可以通过 base(){ a.resize(10)} 或者 base():a(10,1) {} 这种方式再初始化
std::vector<int> v = {1, 2, 3, 4};和第一种情况类似,但是这里vector v的初始化长度为 k,...
使用成员初始化列表
将实例方法声明为substract也很奇怪,更合理的做法是这样:
vector<vector<bool>>*haveVisit; vector<vector<int>>memo;public:boolexist(vector<vector<char>>& board,stringword) { haveVisit=newvector<vector<bool>>(board.size(), vector<bool>(board[0].size(),false)); memo= vector<vector<int>> (rows, vector<int>(cols,0)); ...
{ return snakebody; } private: int lengh=1; //蛇的长度 vector<ssbody> snakebody{make_pair(make_pair(10, 10), "●")}; //蛇的位置和符号 }; void gotoxy(int x, int y) { HANDLE h;//句柄,对象的索引 COORD c;//结构体,坐标值 c.X = x; c.Y = y; h = GetStdHandle(STD_...
strcpy(dst,src)strcpy的第一个参数是目标,第二个参数是源,strcpy是把源指
pair里面套pair,类似于vector套vector。还是用个类来包裹数据结构吧。STL的代码这么写下去,可读性差不...
tuple<string, vector<string>, pair<string, int> > one_tuple("hello", vector<string>(), make_pair<string, int>("good", 1));
aBefore looking at the code in system.c, note the declaration of the call vector call_vec, and the definition of the macro map on lines 9745 to 9749. Call_vec is an array of pointers to functions, which provides a mechanism for dispatching to the function needed to service a particular...