makefile示例

CXX = g++
ERROR = 2>error.txt
CXXFLAGS= -O2 -g -std=c++11
TARGET = main.exe

TARGET2 = main2.exe
SOURCES = main.cpp
IN = < in.txt
OUT = > out.txt

all:$(SOURCES)

　　@echo $(SOURCES)
　　$(CXX) $(SOURCES) $(CXXFLAGS) -o $(TARGET) $(ERROR)
　　$(TARGET) $(IN) $(OUT)

 

$(TARGET2):$(SOURCES)

　　$(CXX) $(SOURCES) $(CXXFLAGS) -o $@ $(ERROR)

 

clean:
　　del *.exe