//-----------------------------------------------------------------//
handle_set(bool zhe = true, uint32_t fas = 0) : array_(), erase_set_(),
zero_handle_enable_(zhe) {
if(fas) {
array_.reserve(fas);
array_.clear();
}
if(zero_handle_enable_) array_.push_back(T());
}
//-----------------------------------------------------------------//
void clear() {
erase_set_.clear();
array_.clear();
if(zero_handle_enable_) array_.push_back(T());
}