STL之vector 如何初始化

（1）第一種，類似於數組的方式：

 

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1. std::vector<std::string> strArray(10);  
2. strArray[0] = "hello";  
3. strArray[1] = "world";  
4. strArray[2] = "this";  
5. strArray[3] = "find";  
6. strArray[4] = "gank";  
7. strArray[5] = "pink";  
8. strArray[6 ]= "that";  
9. strArray[7] = "when";  
10. strArray[8] = "how";     
11. strArray[9] = "cpp";  

 

 

 

（2）push_back的方式：

 

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1. vector<string> strArray;  
2. strArray.push_back("hello");  
3. strArray.push_back("world");  
4. strArray.push_back("this");  
5. strArray.push_back("find");  
6. strArray.push_back("gank");  
7. strArray.push_back("pink");  
8. strArray.push_back("that");  
9. strArray.push_back("when");  
10. strArray.push_back("how");     
11. strArray.push_back("cpp");  

（3）構造函數的方式：

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1. string str[]={"hello","world","this","find","gank","pink","that","when","how","cpp"};  
2. vector<string> strArray(str, str+10);