third commit

1.1打印输出 Hello World.c

@@ -1,8 +0,0 @@
-#include<stdio.h>
-	int main(void)
-	{  
-	printf("Hello World");
-        return 0;
-	}
-
-

Makefile.win

@@ -0,0 +1,28 @@
+# Project: 学生成绩管理系统
+# Makefile created by Dev-C++ 5.11
+
+CPP      = g++.exe
+CC       = gcc.exe
+WINDRES  = windres.exe
+OBJ      = 课设.o
+LINKOBJ  = 课设.o
+LIBS     = -L"D:/下载/工具/Dev-Cpp/MinGW64/lib" -L"D:/下载/工具/Dev-Cpp/MinGW64/x86_64-w64-mingw32/lib" -static-libgcc
+INCS     = -I"D:/下载/工具/Dev-Cpp/MinGW64/include" -I"D:/下载/工具/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include" -I"D:/下载/工具/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include"
+CXXINCS  = -I"D:/下载/工具/Dev-Cpp/MinGW64/include" -I"D:/下载/工具/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include" -I"D:/下载/工具/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include" -I"D:/下载/工具/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include/c++"
+BIN      = 学生成绩管理系统.exe
+CXXFLAGS = $(CXXINCS) 
+CFLAGS   = $(INCS) 
+RM       = rm.exe -f
+
+.PHONY: all all-before all-after clean clean-custom
+
+all: all-before $(BIN) all-after
+
+clean: clean-custom
+	${RM} $(OBJ) $(BIN)
+
+$(BIN): $(OBJ)
+	$(CPP) $(LINKOBJ) -o $(BIN) $(LIBS)
+
+课设.o: 课设.cpp
+	$(CPP) -c 课设.cpp -o 课设.o $(CXXFLAGS)

学生成绩管理系统.dev

@@ -0,0 +1,62 @@
+[Project]
+FileName=学生成绩管理系统.dev
+Name=学生成绩管理系统
+Type=1
+Ver=2
+ObjFiles=
+Includes=
+Libs=
+PrivateResource=
+ResourceIncludes=
+MakeIncludes=
+Compiler=
+CppCompiler=
+Linker=
+IsCpp=1
+Icon=
+ExeOutput=
+ObjectOutput=
+LogOutput=
+LogOutputEnabled=0
+OverrideOutput=0
+OverrideOutputName=
+HostApplication=
+UseCustomMakefile=0
+CustomMakefile=
+CommandLine=
+Folders=
+IncludeVersionInfo=0
+SupportXPThemes=0
+CompilerSet=0
+CompilerSettings=0000000000000000000000000
+UnitCount=1
+
+[VersionInfo]
+Major=1
+Minor=0
+Release=0
+Build=0
+LanguageID=1033
+CharsetID=1252
+CompanyName=
+FileVersion=
+FileDescription=Developed using the Dev-C++ IDE
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=
+AutoIncBuildNr=0
+SyncProduct=1
+
+[Unit1]
+FileName=课设.cpp
+CompileCpp=1
+Folder=
+Compile=1
+Link=1
+Priority=1000
+OverrideBuildCmd=0
+BuildCmd=
+

学生成绩管理系统.layout

@@ -0,0 +1,8 @@
+[Editor_0]
+CursorCol=27
+CursorRow=14
+TopLine=10
+LeftChar=1
+[Editors]
+Order=0
+Focused=0

课设.cpp

@@ -470,7 +470,7 @@ void filewrite(struct student stu[M])					//д
 	}
 	if (c=='y')
 	{
-	if((fp=fopen("d:\\stu.dat","wb"))==NULL)
+	if((fp=fopen("stu.dat","wb"))==NULL)
 	{
 		printf("文件打开错误,程序无法进行\n");
 		exit(0);
@@ -505,7 +505,7 @@ void fileread(struct student stu[M])					//
 	}
 	if (c=='y')
 	{
-	if((fp=fopen("d:\\stu.dat","rb"))==NULL)
+	if((fp=fopen("stu.dat","rb"))==NULL)
 	{
 		printf("文件打开错误,程序无法进行\n");
 		exit(0);