本帖最后由 swet35dfh32423 于 2011-09-11 00:23:53 编辑

解决方案 »

  1.   

    这是JS写出来的,感觉太过繁琐。
    高人能否PHP完成精简呢?var x; var y;
    function cc(x,y)                                   {
    z=x-y;
                                    if(y%2){
    if((x%2)==0)    {  //奇数是
    if(z+2>0)c=z+2;
    else c=10+z+2;
                 }
    //偶数是?
    if(x%2){
    if(y>x){c=10+z;}
    else {c=z;}
             }
                     }
                                      else{
    if(x%2)               {
    if(y>x){c=10+z;}
    else {c=z;}
             }
    else {
    if(x>y-1)c=z;
    else c=z+10
    }         
                                           }                                                  }