I want to output text in a text file.

I want to output text in a text file. There are some data that need to be replaced, such as endtime. I used% d, but when I finished outputting, I found that% d was not replaced by endtime. The output is still% d. I want to ask what I did wrong?

[日凯 林]

The code is as follows

The cfprintf(newfid,'%s\n','$# endtim endcyc dtmin endeng endmas nosol');

fprintf(newfid,'%s\n',' %d 0 0.0 0.01.000000E8 0',endtime);

[Stephen23]

"I used% d, but when I finished outputting, I found that% d was not replaced by endtime. The output is still% d. I want to ask what I did wrong?"

You wrote %d in the input text (for which all characters are interpreted literally), rather than in the format string (where special characters are used as you expect, to specify how to display the input arguments).

fprintf(newfid,'%s\n','       %d         0       0.0       0.01.000000E8         0',endtime);
%              ^^^^^^                                                               format string, special characters.
%                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ input argument, literal text only!