c结构体赋值的另类操作 附带另类json解析的函数

typedef struct {
    int floor; //0 1 2 3 4 5....
    int type;  //0 :    1 ,     2 {     3 }     4 [     5 ]
    int pos;//
}StructJsonParseMiddle;  //事件码和故障码对应的结构体

void JsonParseFloor(QString data,QMap<QString, QString> &map,int floor=1){
    int currentFloor = 0;
    QList<StructJsonParseMiddle> list;
    for(int i=0;i<data.length();i++){
        if(false){}
        else if(':'==data.at(i)){ list.append({currentFloor,0,i}); }
        else if(','==data.at(i)){ list.append({currentFloor,1,i}); }
        else if('{'==data.at(i)){ currentFloor+=1;list.append({currentFloor,2,i}); }
        else if('['==data.at(i)){ currentFloor+=1;list.append({currentFloor,4,i}); }
        else if('}'==data.at(i)){ list.append({currentFloor,3,i});currentFloor-=1; }
        else if(']'==data.at(i)){ list.append({currentFloor,5,i});currentFloor-=1; }
    }

    int beginpos = 0;
    QString key = "";
    for(auto line:list){
        //myDebugMsg(QString("floor:%1  type:%2  pos:%3").arg(line.floor).arg(line.type).arg(line.pos));
        if(line.type==2 && line.floor==floor){beginpos=line.pos+1; }
        if(line.type==0 && line.floor==floor){
            key = data.mid(beginpos,line.pos-beginpos);
            beginpos=line.pos+1;
        }
        if(line.type==1 && line.floor==floor){
            map[key]=data.mid(beginpos,line.pos-beginpos);
            beginpos=line.pos+1;
        }
        if(line.type==3 && line.floor==floor){
            map[key]=data.mid(beginpos,line.pos-beginpos);
            beginpos=line.pos+1;
        }
    }
}

void JsonParseArray(QString data, QStringList &res, int floor=1)
{
    int currentFloor = 0;
    QList<StructJsonParseMiddle> list;
    for(int i=0;i<data.length();i++){
        if(false){}
        else if(':'==data.at(i)){ list.append({currentFloor,0,i}); }
        else if(','==data.at(i)){ list.append({currentFloor,1,i}); }
        else if('{'==data.at(i)){ currentFloor+=1;list.append({currentFloor,2,i}); }
        else if('['==data.at(i)){ currentFloor+=1;list.append({currentFloor,4,i}); }
        else if('}'==data.at(i)){ list.append({currentFloor,3,i});currentFloor-=1; }
        else if(']'==data.at(i)){ list.append({currentFloor,5,i});currentFloor-=1; }
    }

    int beginpos = 0;
    QString key = "";
    int flag = 0;//标记是数组还是kv

    for(auto line:list){
        if(line.floor==floor){
            if(line.type==2) flag = 2;
            else if(line.type==4) flag = 4;
            break;
        }
    }
    if(flag==2){
        for(auto line:list){
            if(line.type==2 && line.floor==floor){beginpos=line.pos+1; }
            if(line.type==0 && line.floor==floor){
                key = data.mid(beginpos,line.pos-beginpos);
                beginpos=line.pos+1;
            }
            if(line.type==1 && line.floor==floor){
                res.append(QString("%1:%2").arg(key).arg(data.mid(beginpos,line.pos-beginpos)));
                beginpos=line.pos+1;
            }
            if(line.type==3 && line.floor==floor){
                res.append(QString("%1:%2").arg(key).arg(data.mid(beginpos,line.pos-beginpos)));
                beginpos=line.pos+1;
            }
        }
    }
    else if(flag==4){
        for(auto line:list){
            if(line.type==4 && line.floor==floor){beginpos=line.pos+1; }
            if(line.type==1 && line.floor==floor){
                res.append(data.mid(beginpos,line.pos-beginpos));
                beginpos=line.pos+1;
            }
            if(line.type==5 && line.floor==floor){
                res.append(data.mid(beginpos,line.pos-beginpos));
                beginpos=line.pos+1;
            }
        }
    }
}

附带另类json解析的函数