#include<iostream>
#include<vector>
using namespace std;
int main()
{
int a[10] = { 1,2,3,4,5,6,7,8,9,10 };
vector<int> val(a, a + 10);
auto it = val.begin();
for (; it != val.end(); it++)
*it = *it * 2;
cout << *it << endl;
}
運行結果：
uj5u.com熱心網友回復：
for (; it != val.end(); it++)*it = *it * 2;
cout << *it << endl;//因為上邊的回圈，這句話已經到了末尾，怎么能夠解參考呢？
uj5u.com熱心網友回復：
for (; it != val.end(); it++)*it = *it * 2;
cout << *it << endl;
這一句錯誤了，要用大括號{}把這兩句括進去就對了
for (; it != val.end(); it++)
{
*it = *it * 2;
cout << *it << endl;
}
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標籤：C++ 語言