poi Dataformat种类

0, "General"  
1, "0"  
2, "0.00"  
3, "#,##0"  
4, "#,##0.00"  
5, "($#,##0_);($#,##0)"  
6, "($#,##0_);[Red]($#,##0)"  
7, "($#,##0.00);($#,##0.00)"  
8, "($#,##0.00_);[Red]($#,##0.00)"  
9, "0%"  
0xa, "0.00%"  
0xb, "0.00E+00"  
0xc, "# ?/?"  
0xd, "# ??/??"  
0xe, "m/d/yy"  
0xf, "d-mmm-yy"  
0x10, "d-mmm"  
0x11, "mmm-yy"  
0x12, "h:mm AM/PM"  
0x13, "h:mm:ss AM/PM"  
0x14, "h:mm"  
0x15, "h:mm:ss"  
0x16, "m/d/yy h:mm"  
// 0x17 - 0x24 reserved for international and undocumented 0x25, "(#,##0_);(#,##0)"  
  
0x26, "(#,##0_);[Red](#,##0)"  
  
0x27, "(#,##0.00_);(#,##0.00)"  
  
0x28, "(#,##0.00_);[Red](#,##0.00)"  
  
0x29, "_(*#,##0_);_(*(#,##0);_(* \"-\"_);_(@_)"  
  
0x2a, "_($*#,##0_);_($*(#,##0);_($* \"-\"_);_(@_)"  
  
0x2b, "_(*#,##0.00_);_(*(#,##0.00);_(*\"-\"??_);_(@_)"  
  
0x2c, "_($*#,##0.00_);_($*(#,##0.00);_($*\"-\"??_);_(@_)"  
  
0x2d, "mm:ss"  
  
0x2e, "[h]:mm:ss"  
  
0x2f, "mm:ss.0"  
  
0x30, "##0.0E+0"  
  
0x31, "@" - This is text format.  
  
0x31 "text" - Alias for "@"