toParam method
Implementation
String toParam() {
String value;
switch (this) {
case BaiduOrder.name:
value = 'name';
break;
case BaiduOrder.time:
value = 'time';
break;
case BaiduOrder.size:
value = 'size';
break;
case BaiduOrder.type:
value = '';
}
return value;
}