[转]Delphi数据类型转换

　　 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                       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 

FormatDateTime('yyyy-MM-dd HH:mm:ss.zzz',Now)   精确到 年月日 小时分钟秒 毫秒

currtostr  currency转换为string