C++PRIMER P 250
c++primer(ed 3) P249~p250

typedef pair <short,shour> location;
typedef vector <location> loc;
typedef vector <string> text;
typedef pair <text *,loc *> text_loc;

extern map <string,loc*> * build_word_map(const text_loc *text_locations);


map <string,loc*> *word_map=new map <string,loc*> ;
vector <string> *text_words=text_locations-> first;
vector <location> *text_locs=text_locations-> second;

(*word_map)[(*text_words)[ix]]-> push_back((*text_locs)[ix]);


这其中的(*word_map)[(*text_words)[ix]] 怎么会和是一个位置向量呢？？
我知道 (*text_words)[ix]是一个STRING


[解决办法]
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