成员的完整列表，这些成员属于 x1::xlt_szse_l1_index_t,包括所有继承而来的类成员

channel_no	x1::xlt_szse_l1_index_t
close_index	x1::xlt_szse_l1_index_t
high_index	x1::xlt_szse_l1_index_t
last_index	x1::xlt_szse_l1_index_t
low_index	x1::xlt_szse_l1_index_t
md_stream_id	x1::xlt_szse_l1_index_t
num_trades	x1::xlt_szse_l1_index_t
open_index	x1::xlt_szse_l1_index_t
orig_time	x1::xlt_szse_l1_index_t
prev_close_index	x1::xlt_szse_l1_index_t
prev_close_px	x1::xlt_szse_l1_index_t
security_code	x1::xlt_szse_l1_index_t
security_id_source	x1::xlt_szse_l1_index_t
total_value_trade	x1::xlt_szse_l1_index_t
total_volume_trade	x1::xlt_szse_l1_index_t
trading_phase_code	x1::xlt_szse_l1_index_t