问关于在matlab中使用textscan读取数据

EN

detect : uido
detect_date : 2015-07-19
detect_adress : uido ocean
lon :  34, 32, 35
lat :  125, 48, 10
num detect_date     water_temperature(℃)    Maximum wave height(m)  temperature(℃)  atmospheric pressure(hPa)   Wind direction(16points)    wind speed(m/s) 
0   2015/12/31 23:00    10.57   -   -   -   -   -   
1   2015/12/31 22:00    10.68   -   -   -   -   -   
2   2015/12/31 21:00    11.13   -   -   -   -   -   
3   2015/12/31 20:00    11.68   -   -   -   -   -   
4   2015/12/31 19:00    11.63   -   -   -   -   -   
5   2015/12/31 18:00    11.76   -   -   -   -   -   
6   2015/12/31 17:00    11.64   -   -   -   -   -   
7   2015/12/31 16:00    10.78   -   -   -   -   -   
8   2015/12/31 15:00    10.61   -   -   -   -   -   

file_path = './uido/';
filename = 'uido_2015-01_2015-12.txt';
file_id = fopen(filename,'r');

C = importdata(fn);
header = split(C(6),'\t');
format = repmat('%s', [1 length(hdr)]);

D = textscan(file_id, format, 'headerlines', 6, 'Delimiter', '\t');