Matlab-读写nc文件

1. NC文件

1.1 Read

ncfile='test.nc';
lon=ncread(ncfile,'lon');
lat=ncread(ncfile,'lat');
TEC=ncread(ncfile,'TEC');
TEC=TEC';

1.2 Write

cid=netcdf.create('test.nc','NC_NOWRITE');

dimidlon=netcdf.defDim(cid,'lon',73);
dimidlat=netcdf.defDim(cid,'lat',71);
varid1=netcdf.defVar(cid,'lon','double',dimidlon);
varid2=netcdf.defVar(cid,'lat','double',dimidlat);
varid3=netcdf.defVar(cid,'TEC','double',[dimidlon dimidlat]);
netcdf.endDef(cid);

netcdf.putVar(cid,varid1,-180:5:180);
netcdf.putVar(cid,varid2,87.5:-2.5:-87.5);
netcdf.putVar(cid,varid3,TEC');
netcdf.close(cid);

2.TXT文件

2.1 读取目录文件

mainDir='G:\Data\Jason3\';
txtFile=dir([mainDir,'*.txt']);
for i=1:length(txtFile)
    Path1=[mainDir,txtFile(i).name];
end

2.2 判断L是否包含’ABC’

if contains(L,'ABC')
   break;
end

2.3 读取文件,直至结束

while ~feof(fp)
    ...
end

2.4 文件指针复位到文件开头

frewind(fp);

2.5 读取含文本和数字的文件

A=textscan(L,'%s %d %d');

3.XLSX文件

3.1 Read

T2=readtable('1.xlsx',"VariableNamingRule","preserve");

3.2 Write

varNames={'lon','lat','TEC'};
T1=table(lon,lat,TEC,'VariableNames',varNames);
writetable(T1,'1.xlsx','Range','A1');