string输出文件名

输入盘符，文件夹名，文件名，输出该文件所在路径，以“/”连接

string可以直接用+拼接啊

如下：

#include <iostream>
#include <string>
using namespace std;
int main()
{
    string pf,path,filename;
    string all;
    cout << "请输入盘符：";
    cin >> pf;
    cout << "请输入文件夹名：";
    cin >> path;
    cout << "请输入文件名：";
    cin >> filename;
    all = pf + ":/"+path+"/"+filename;//如果盘符后面需要两个//，那么就改成 all = pf + "://"+path+"/"+filename;
    cout << all<<endl;
    return 0;
}

如果路径中有\要替换成/，代码如下：

代码：

#include <iostream>
#include <string>
using namespace std;
int main()
{
    string pf,path,filename;
    string all;
    string t="";
    int i=0;
    cout << "请输入盘符：";
    cin >> pf;
    cout << "请输入文件夹名：";
    cin >> path;
    //将path中的\\替换成/
    while(i<path.length())
    {
        if(path.at(i)=='\\')
            t+='/';
        else
            t+=path.at(i);
        i++;
    }


    cout << "请输入文件名：";
    cin >> filename;
    all = pf + ":/"+t+"/"+filename;//如果盘符后面需要两个//，那么就改成 all = pf + "://"+path+"/"+filename;
    cout << all<<endl;
    return 0;
}

#include <iostream>
#include <string>
using namespace std;

int main()
{
    string result;
    string inputStr;
    cout << "please input disk: ";
    cin >> inputStr;
    result = inputStr;
    result += ":";
    while (true){
        int type = 0;
        cout << "type:\n\tfolder: 0\n\tfile name: 1\n";
        cout << "input type code = ";
        cin >> type;
        if (type == 0){
            cout << "input folder = ";
            cin >> inputStr;
            result += "/";
            result += inputStr;
        }
        else{
            cout << "input file name = ";
            cin >> inputStr;
            result += "/";
            result += inputStr;
            break;
        }
    }
    cout << "file path = " << result << endl;

    system("pause");
    return 0;
}

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