案例分析(设该班人数为3人) int score1, score2 scorer if(score 1>score2) swap(score1, score2); if(score 2>score3) swap(score2 score) if(score1>score2) swap(score1, score2); cout< <score1<<score2<<scores<<end3 案例分析(设该班人数为3人) int score1, score2, score3; ... if(score1>score2) swap(score1, score2); if(score2>score3) swap(score2, score3); if(score1>score2) swap(score1, score2); cout<<score1<<score2<<score3<<endl;