题解 | #参数解析#

#include <iostream>
#include <string>
using namespace std;
#include<vector>
int main() {
    vector<string>results;
    int i =0,j=0;
    bool inQuotes = false;
    string str;
    getline(cin, str);
    while(j<str.size()){
        if(str[j]=='"'){
            inQuotes = !inQuotes;
            if(!inQuotes){
                results.push_back(str.substr(i+1,j-i-1));
                i=j+1;
            }
        }
        else if (str[j]==' '&&!inQuotes) {
            if(i<j){
                results.push_back(str.substr(i,j-i));
            }
            i = j+1;
        }
        j++;
    }
    if(i<j){
        results.push_back(str.substr(i,j-i));
    }
    cout<<results.size()<<endl;
    for(string result:results){
        cout<<result<<endl;
    }
    return 0;
}
// 64 位输出请用 printf("%lld")