C++之模板定义typename与class用法

#include 
#include 
using namespace std;

//typename TT:
template
void test1(vector& a, int len) {
	for(int i = 0; i
void test2(vector& a, int len) {
	for(int i = len; i > 0; i--){
		a[10-i] = i;
	}
}

int main(){
	//vector a ={22,350,49,47,33,12,68,29,1};
	//vector *a = new vector(10);//堆上分配

	vector a(10);//栈上分配
	cout << "a.size() = " << a.size()<< endl;
	//1.
	test1(a, a.size());
	for(auto i : a)
		cout << i << " ";
	cout<