题解 | #参数解析#

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

int main(){
    string s;
    while(getline(cin, s)){
        vector<string> output;
        string temp = "";
        bool flag = false; //记录是否进入引号中
        for(int i = 0; i < s.length(); i++){
            if(flag){ //如果在引号中
                if(s[i] != '\"') //遇到非引号都添加为字符串
                    temp += s[i];
                else flag = false; //否则设置出引号
            }else{ //如果不在引号中
                if(s[i] == ' '){ //遇到空格隔断
                    output.push_back(temp); 
                    temp = "";
                }else if(s[i] == '\"') //遇到引号设置为进入引号
                    flag = true; 
                else //其余添加进字符串
                    temp += s[i];
            }
        }
        output.push_back(temp); //最后一段
        
        cout << output.size() << endl; //输出参数个数
        for(int i = 0; i < output.size(); i++)
            cout << output[i] << endl;
    }
    return 0;
}