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

//选择排序，大循环每次选择一个数与后面元素逐个比较
void mysort(char* src,int len){

   int tem =0;
   int exchanged = 1;//交换标志位
   for(int i = 0; i < len  && exchanged; i++){
       //每轮比较之前重置交换标志位
       exchanged = 0;
       for(int j= i + 1; j < len; j++){
           //从小到大>
           //从大到小<
           //src[i]依次与它后面元素比较
           if(src[i] > src[j]){
               //需要交换，置位标志位
               exchanged = 1;
               tem = src[i];
               src[i] = src[j];
               src[j] = tem;
           }
       }
   }
}
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    char b2[]={11,5,4,7,3,0,9,10,22};

     mysort(b2, 9);
     cout<<b2<<endl;

    for (auto j : b2) {
        printf("从大到小 mysort out buff2: %d\n", j);
     }

    return a.exec();
}