成员的完整列表，这些成员属于 x1::xlt_szse_l1_snapshot_t,包括所有继承而来的类成员

bid_px	x1::xlt_szse_l1_snapshot_t
bid_volume	x1::xlt_szse_l1_snapshot_t
channel_no	x1::xlt_szse_l1_snapshot_t
etf_buy_amount	x1::xlt_szse_l1_snapshot_t
etf_buy_number	x1::xlt_szse_l1_snapshot_t
etf_sell_amount	x1::xlt_szse_l1_snapshot_t
etf_sell_number	x1::xlt_szse_l1_snapshot_t
high_px	x1::xlt_szse_l1_snapshot_t
iopv	x1::xlt_szse_l1_snapshot_t
last_px	x1::xlt_szse_l1_snapshot_t
limit_down_px	x1::xlt_szse_l1_snapshot_t
limit_up_px	x1::xlt_szse_l1_snapshot_t
low_px	x1::xlt_szse_l1_snapshot_t
md_stream_id	x1::xlt_szse_l1_snapshot_t
nav	x1::xlt_szse_l1_snapshot_t
num_trades	x1::xlt_szse_l1_snapshot_t
offer_px	x1::xlt_szse_l1_snapshot_t
offer_volume	x1::xlt_szse_l1_snapshot_t
open_px	x1::xlt_szse_l1_snapshot_t
option_break_px	x1::xlt_szse_l1_snapshot_t
option_open_qty	x1::xlt_szse_l1_snapshot_t
orig_time	x1::xlt_szse_l1_snapshot_t
pe_ratio_1	x1::xlt_szse_l1_snapshot_t
pe_ratio_2	x1::xlt_szse_l1_snapshot_t
prev_close_px	x1::xlt_szse_l1_snapshot_t
px_gain	x1::xlt_szse_l1_snapshot_t
px_gain_2	x1::xlt_szse_l1_snapshot_t
security_code	x1::xlt_szse_l1_snapshot_t
security_id_source	x1::xlt_szse_l1_snapshot_t
total_bid_qty	x1::xlt_szse_l1_snapshot_t
total_offer_qty	x1::xlt_szse_l1_snapshot_t
total_value_trade	x1::xlt_szse_l1_snapshot_t
total_volume_trade	x1::xlt_szse_l1_snapshot_t
trading_phase_code	x1::xlt_szse_l1_snapshot_t
warrant_premium	x1::xlt_szse_l1_snapshot_t
weighted_avg_bid_px	x1::xlt_szse_l1_snapshot_t
weighted_avg_offer_px	x1::xlt_szse_l1_snapshot_t