kefile用于构建和编译packet_sniffer项目。它定义了项目的依赖关系、编译规则和目标文件。根据提供的内容,以下是一个简单的Makefile示例:,```makefile,CC = gcc,CFLAGS = -Wall -O2,all: packet_sniffer,packet_sniffer: packet_sniffer.o, $(CC) -o packet_sniffer $(CFLAGS) packet_sniffer.o,packet_sniffer.o: packet_sniffer.c, $(CC) $(CFLAGS) -c packet_sniffer.c,clean:, rm -f packet_sniffer packet_sniffer.o......