procedure Tt_databake.Button1Click(Sender: TObject);
var
mytime: TDateTime;
ErrorMessage: Pointer;
ErrorCode: DWORD;
ErrorMessageString:string;
path:LPCSTR;
begin
mytime:=Now;
path:=LPCSTR(Edit1.Text+DateToStr(mytime)+' '+TimeToStr(mytime)+'.dat');
if not CopyFile('mphygl.mdb',path,False) then
begin
ErrorCode := GetLastError;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER or FORMAT_MESSAGE_FROM_SYSTEM,
nil, ErrorCode, 0, @ErrorMessage, 0, nil);
ErrorMessageString:='文件备份错误:'+PChar(ErrorMessage);
MessageBox(handle,PChar(ErrorMessageString),'警告',MB_ok or MB_ICONERROR);
LocalFree(hlocal(ErrorMessage));
end
else MessageBox(handle,'文件备份成功','信息',MB_ok or MB_ICONINFORMATION);
end;运行报错,说参数错误,似乎是这里出错了:
if not CopyFile('mphygl.mdb',path,False) then
貌似是类型没有转化过来?改怎么写?
var
mytime: TDateTime;
ErrorMessage: Pointer;
ErrorCode: DWORD;
ErrorMessageString:string;
path:LPCSTR;
begin
mytime:=Now;
path:=LPCSTR(Edit1.Text+DateToStr(mytime)+' '+TimeToStr(mytime)+'.dat');
if not CopyFile('mphygl.mdb',path,False) then
begin
ErrorCode := GetLastError;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER or FORMAT_MESSAGE_FROM_SYSTEM,
nil, ErrorCode, 0, @ErrorMessage, 0, nil);
ErrorMessageString:='文件备份错误:'+PChar(ErrorMessage);
MessageBox(handle,PChar(ErrorMessageString),'警告',MB_ok or MB_ICONERROR);
LocalFree(hlocal(ErrorMessage));
end
else MessageBox(handle,'文件备份成功','信息',MB_ok or MB_ICONINFORMATION);
end;运行报错,说参数错误,似乎是这里出错了:
if not CopyFile('mphygl.mdb',path,False) then
貌似是类型没有转化过来?改怎么写?
begin
mytime:=Now;
path:=Edit1.Text+DateToStr(mytime)+' '+TimeToStr(mytime)+'.dat';
if not CopyFile('mphygl.mdb',path,False) then//文件名不能含有':',TimeToStr(mytime)这里改下