第一行的返回是
return new String[]{String.valueOf(zheng),String.valueOf(xiao1)+xiao2};

private String[] divide(double num)
{
long zheng=(long)num;
int xiao=(int)Math.round((num-zheng)*100);
int xiao1=(int)(num-zheng)*10;
int xiao2=xiao-xiao1*10;
return new String[]{String.valueOf(zheng),String.valueOf(xiao1)+xiao2};
//return new String[]{zheng+"",xiao+""};
}