nl_tokens: 版本号比较
pl_tokens: public static int compareVersion ( String v1 , String v2 ) { if ( v1 . equals ( v2 ) ) { return 0 ; } String [ ] version1Array = v1 . split ( "[._]" ) ; String [ ] version2Array = v2 . split ( "[._]" ) ; int index = 0 ; int minLen = Math . <mask> ( version1Array . length , version2Array . length ) ; long diff = 0 ; while ( index < minLen && ( diff = Long . parseLong ( version1Array [ index ] ) - Long . parseLong ( version2Array [ index ] ) ) == 0 ) { index ++ ; } if ( diff == 0 ) { for ( int i = index ; i < version1Array . length ; i ++ ) { if ( Long . parseLong ( version1Array [ i ] ) > 0 ) { return 1 ; } } for ( int i = index ; i < version2Array . length ; i ++ ) { if ( Long . parseLong ( version2Array [ i ] ) > 0 ) { return - 1 ; } } return 0 ; } else { return diff > 0 ? 1 : - 1 ; } }