怎么使用vector？
有如下数据结构
typedef RT{
char name[20];
int age;
int weight;
}

需要存储20个这样的元组，

vector <RT> coll;

定义coll之后　，怎样给这些元组赋值？

[解决办法]
typedef struct RT{
char name[20];
int age;
int weight;
}a;

int main(){
vector <a> coll;
a rt;
while(cin> > rt.name> > rt.age> > rt.weight){
coll.push_back(rt);
}
for(vector <a> ::iterator i =coll.begin();i != coll.end();i++)
cout < <i-> name < < " " < <i-> age < < " " < <i-> weight < <endl;

return 0;
}