(原創) 如何使用find() algorithm? (C/C++) (STL)
find()能在container中，尋找單一的值，若找的到，傳回該iterator，若找不到，則傳回container.end()。
1
/*
2
(C) OOMusou 2006 http://oomusou.cnblogs.com
3
4Filename : GenericAlgo_find.cpp
5Compiler : Visual C++ 8.0 / ISO C++
6Description : Demo how to use find() algorithm
7Release : 11/15/2006 1.0
8 12/14/2006 2.0
9
*/
10
11#include <iostream>
12#include <vector>
13#include <algorithm>
14
15using namespace std;
16
17int main() {
18
int ia[] = {1,2,3};
19 vector<int> ivec(ia, ia + sizeof(ia) / sizeof(int));
20
21 vector<int>::iterator iter = find(ivec.begin(), ivec.end(),3);
22
23 if (iter != ivec.end()) {
24 cout << *iter << endl;
25
}
26 else {
27 cout << "not find!!" << endl;
28 }
29}
/* 
2
(C) OOMusou 2006 http://oomusou.cnblogs.com3
4
Filename : GenericAlgo_find.cpp5
Compiler : Visual C++ 8.0 / ISO C++6
Description : Demo how to use find() algorithm7
Release : 11/15/2006 1.08
12/14/2006 2.09
*/10
11
#include <iostream>12
#include <vector>13
#include <algorithm>14
15
using namespace std;16
17
int main() {
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int ia[] = {1,2,3};
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vector<int> ivec(ia, ia + sizeof(ia) / sizeof(int));20
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vector<int>::iterator iter = find(ivec.begin(), ivec.end(),3);22
23
if (iter != ivec.end()) {24
cout << *iter << endl;25
}26
else {27
cout << "not find!!" << endl;28
}29
}
執行結果
13
2請按任意鍵繼續 . . .
32
請按任意鍵繼續 . . .
