Matlab学习笔记[3](Using Script Files and Managing Data)
3.1?INPUT TO A SCRIPT FILE
3.1.1?The variable is defined and assigned a value in the script file.
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3.1.2?The variable is defined and assigned a value in the Command Window.
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3.1.3?The variable is defined in the script file, but a specific value is entered?in the Command Window when the script file is executed
例如
variable_name = input(‘string with a message that?is displayed in the Command Window’)
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3.2?OUTPUT COMMANDS
3.2.1?The disp Command
disp(name of a variable) or disp(‘text as string’)
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3.2.2?The fprintf Command
1.Using the fprintf command to display text:
fprintf(‘text typed in as a string’)
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2.Using the fprintf command to display a mix of text and numerical data
fprintf(‘text as string %-5.2f additional text’,variable_name)
fprintf(‘..text...%g...%g...%f...’,variable1,variable2,variable3)
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3.Using the fprintf command to save output to a file:
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a) Opening a file using the fopen command
fid = fopen(‘file_name’,‘permission’)
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b) Writing the output to the open file using the fprintf command.
fprintf(fid,‘text %-5.2f additional text’,variable_name)
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c) Closing the file using the fclose command.
fclose(fid)
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3.2.3?THE save AND load COMMANDS
1 The save Command
save file_name and save(‘file_name’)
save file_name var1 var2 and?save(‘file_name’,‘var1’,‘var2’)
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2?The load Command
load file_name or load(‘file_name’)
load file_name var1 var2 or?load(‘file_name’,‘var1’,‘var2’)
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3.2.4 IMPORTING AND EXPORTING DATA
variable_name = xlsread(‘filename’)
variable_name = xlsread(‘filename’,‘sheet_name’)
variable_name = xlsread(‘filename’,‘sheet_name’,‘C2:E5’)
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xlswrite(‘filename’,variable_name)
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