文件分割器V1.0
终于,做出来了,
虽然程序很简单,但是使我发现了一个人人都应该值得注意的事情,
就是即使简单,要做好,还是有难度的.
一下为文档,以作纪念.
文件拆分器V1.0
具有功能:
把比较长的文档或文件拆分成若干份小文件.目前只能把文件分割成txt文件.而且目前的功能只能最多分割出二十个文件.
控件变量:
CString m_ReAddress; //原文件地址
Cstring m_ToAddress; //存放到地址
long m_Size; //文件字节数
long m_PerSize; //每份大小;
Cstring m_status //显示分割后的状态
代码:
//在class CmyDlg中加入几个成员:
Class CmyDlg
{
long size; //记录导入文档的长度;
int per; //把文档分成的分数
char *name[20]; //分割后文件的名称
CString filename; //分割后文件的地址及名称
}
//构造函数
CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
: CDialog(CMyDlg::IDD, pParent)
{
name[0]="000.txt";
name[1]="001.txt";
name[2]="002.txt";
name[3]="003.txt";
name[4]="004.txt";
name[5]="005.txt";
name[6]="006.txt";
name[7]="007.txt";
name[8]="008.txt";
name[9]="009.txt";
name[10]="010.txt";
name[11]="011.txt";
name[12]="012.txt";
name[13]="013.txt";
name[14]="014.txt";
name[15]="015.txt";
name[16]="016.txt";
name[17]="017.txt";
name[18]="018.txt";
name[19]="019.txt";
per=0;
size=0;
}
导入部分:
void CMyDlg::OnImport()
{
// TODO: Add your control notification handler code here
UpdateData(true);
char *readdress=m_Readdress.GetBuffer(m_Readdress.GetLength());
fstream infile(readdress,ios::in | ios::nocreate | ios::binary);
if(!infile)
{
MessageBox("can't not fine this file,please input the right filename.","error");
}
else
{
infile.seekg(0,ios::end);
size=infile.tellg();
m_Size=size;
infile.seekg(0,ios::beg);
}
infile.close();
UpdateData(false);
}
保存部分:
void CMyDlg::OnSave()
{
// TODO: Add your control notification handler code here
UpdateData(true);
if(m_PerSize<=0&&m_PerSize>=size)
MessageBox("PerSize must bigger than zero and smaller than fileSize","error");
else
{
per=size/m_PerSize;
if((m_PerSize*per)<size) per++;
char *readdress=m_Readdress.GetBuffer(m_Readdress.GetLength());
fstream infile(readdress,ios::in | ios::nocreate | ios::binary );
m_Readdress.ReleaseBuffer();
for(int n=0;n<per;n++)
{
char c;
filename=m_Toaddress+name[n];
char *FileName=filename.GetBuffer(filename.GetLength());
filename.ReleaseBuffer();
fstream outfile(FileName,ios::out);
for(int i=0;i<m_PerSize;i++)
{
infile.get(c);
outfile.put(c);
}
outfile.close();
}
infile.close();
MessageBox("已经把文件成功分割了.","yeah");
CString perfile;
perfile.Format("%d",per);
m_status="已经把文件分割成 "+perfile+" 份.";
}
UpdateData(false);
}
//--------------------下面为错误的代码(用read,write的方法读入,)本来想提高效率,可是,出现了错误,没办法不用续字复制的方法;//
void CMyDlg::OnSave()
{
// TODO: Add your control notification handler code here
UpdateData(true);
if(m_PerSize<=0&&m_PerSize>=size)
MessageBox("PerSize must bigger than zero and smaller than fileSize","error");
else
{
per=size/m_PerSize;
char *readdress=m_Readdress.GetBuffer(m_Readdress.GetLength());
fstream infile(readdress,ios::in | ios::nocreate | ios::binary);
for(int n=0;n<per;n++)
{
char *temp=0;
fstream outfile(name[n],ios::out | ios::binary);
infile.read(temp,m_PerSize);
outfile.write(temp,m_PerSize);
outfile.close();
}
infile.close();
MessageBox("job complish.","yeah");
}
UpdateData(false);
}
