oc自定义不定参数函数

-(void)getValueFormConfig:(NSString *)key,...

or

-(void)getValueFormConfig:(NSString *)key,...NS_REQUIRES_NIL_TERMINATION;

-(void)getValueFormConfig:(NSString *)key,...{

NSMutableArray* keys = [NSMutableArray array];

va_list argList;

if(key){

[keys addObject:key];

va_start(argList, key);

id arg;

while ((arg = va_arg(argList, id))) {

[keys addObject:arg];

}

}

va_end(argList);

}