27 lines
905 B
C++
27 lines
905 B
C++
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#include <iostream>
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#include <map>
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using namespace std;
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int main()
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{
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map<int, string> ms;
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// 1. insert()函数
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// map 在插入时会自动根据 map 的键来排序
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ms.insert(pair<int, string>(1, "张三")); // pair<int, string>是map<int, string>::value_type的类型
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ms.insert(pair<int, string>(4, "李四"));
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ms.insert(make_pair(3, "王五")); // make_pair()函数可以自动推导出类型
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ms.insert(map<int, string>::value_type(2, "赵六")); // value_type是map<int, string>的类型
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ms[5] = "田七"; // 通过下标的方式插入数据
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map<int, string>::iterator it = ms.begin();
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for (; it != ms.end(); it++)
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{
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// cout << "sid = " << it->first << ",name = " << it->second << endl;
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cout << "sid = " << (*it).first << ",name = " << (*it).second << endl;
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}
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return 0;
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}
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