IDL> str = 'thick_awi_20120304_v2' ; str可以是数组

 

IDL> print, STREGEX('thick_awi_20120304_v2', '_([0-9]{8})_', /SUBEXPR,/extract)
_20120304_ 20120304

执行下面语句,则返回空,表明在IDL中\d不能等价于[0-9],但是在C#中\d等价于[0-9]

IDL> print, STREGEX('thick_awi_20120304_v2', '_(\d{8})_', /SUBEXPR,/extract)