delphi数据类型转换函数

严重的鄙视Delphi，帮助文件写的太烂了。     DateTimeToFileDate                  函数                     将DELPHI的日期格式转换为DOS的日期格式          DateTimeToStr                          函数                     将日期时间格式转换为字符串          DateTimeToString                      函数                     将日期时间格式转换为字符串          DateToStr                                  函数                     将日期格式转换为字符串          FileDateToDateTime                 函数                     将DOS的日期格式转换为DELPHI的日期格式          FloatToDecimal                          函数                     将浮点数转换为十进制数          FloatToStrF                                函数                     将浮点数转换为字符串          FloatToStr                                  函数                     将浮点数转换为字符串          FloatToText                                函数                     将给定的浮点数转换为十进制数          FloatToTextFmt                          函数                     将给定的浮点数转换为十进制数          IntToHex                                                                     将整型数转换为十六进制数          IntToStr                                                                     将整型数转换为字符串          StringToWideChar                           函数                     将ANSI字符串转换为UNICODE字符串          StrToDate                                         函数                     将字符串转换为日期格式          StrToDateTime                                 函数                     将字符串转换为日期/时间格式          StrToFloat                                       函数                     将给定的字符串转换为浮点数          StrToInt                                           函数                     将字符串转换为整型          StrToIntDef                                     函数                     将字符串转换为整型或默认值          StrToTime                                      函数                     将字符串转换为时间格式          TextToFloat                               函数                     将字符串（以NULL结束的格式）转换为浮点数          TimeToStr                                         函数                     将时间格式转换为字符串        VarToDateTime                                 函数                     将给定的变体转换为日期时间          WideCharLenToString                     函数                     将ANSI字符串转换为UNICODE字符串          WideCharToString                           函数                     将UNICODE字符串转换为ANSI字符串          WideCharToStrVar                           函数                     将UNICODE字符串转换为ANSI字符串变量