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An example of learning and implementing C language makefile

Let's take a look at an example:

Person: main.o person.o rf +-o $@ $^%. O:%. Cpp rf +-c-o $@ $< clean: rm-rf * .o Person

Where:

1. Person represents the target file to be generated.

Main.o person.o is dependent on files

So Person: main.o person.o

This means that if you want to generate the Person file, you have to rely on the main.o and person.o files.

2. $@: indicates the target file, which is Person

$^: represents all dependent files after the target file, that is, .o file

<: indicates the first dependent file, and the first one here refers to main.o

3.%. O:%. Cpp

%, o:%, cpp preceded by% indicates a wildcard, indicating that all .o files and all .cpp files are wildcards.

4. It is also important to note that the above tab + is not preceded by a space, but a tab. In general, the tab is the size of four spaces.

5 、 clean:

Corresponding to the following files, if you execute make clean,makefile, it will help you clear all .o and Person target files.

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