这么简单的问题怎么这么难？？不信你来试试
double ApexRate=0.69;
double x=0;
x=ApexRate+0.2; //0.8899999999999999
x=ApexRate+10000; //10000.69
x=ApexRate-0.2; //0.48999999999999994
x=ApexRate-10000; //-9999.31
x=ApexRate*0.2; //0.13799999999999998
x=ApexRate*10000; //6899.9999999999991
x=ApexRate/0.2; //3.4499999999999997
x=ApexRate/10000; //0.000069
谁能解释一下这是怎么回事吗？
