C++：容器(container)的erase()函數

容器(container)的erase()函數, 是刪除一個元素, 會移動迭代器的指針, 指向下一個元素;

迭代器(iterator)是一種指針, 賦值是傳遞的地址, 指向相同的元素;

代碼:

/* 
 * test.cpp 
 * 
 *  Created on: 2014.04.18 
 *      Author: Spike 
 */
      
/*eclipse cdt, gcc 4.8.1*/
      
#include <iostream>  
#include <vector>  
      
using namespace std;  
      
int main() {  
    std::vector<int> vi = {1, 6, 6, 3};  
    std::vector<int>::iterator iter1;  
    std::vector<int>::iterator iter2;  
      
    //少刪除了一個6  
    for (iter1 = vi.begin(); iter1 != vi.end(); ++iter1) {  
        if (6 == *iter1) {  
            iter2 = iter1;  
            vi.erase(iter2);  
            //--iter1;  
        }  
    }  
      
    std::cout << "vector size is : " << vi.size() << std::endl;  
    for (iter1 = vi.begin(); iter1 != vi.end(); ++iter1) {  
        std::cout << *iter1 << " ";  
    }  
    std::cout << std::endl;  
      
    return 0;  
}

輸出:

vector size is : 3  
1 6 3

作者：csdn博客 Spike_King