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  1. !! +var+ +random+ +string+
  2.  
  3. tit:shuffle
  4. type:$type_var
  5. alias:randperm, randpermute
  6. syntax:!shuffle [even|odd] `n'\
  7. !shuffle [even|odd] `list'
  8. mean:¶Ô `n' ¸öÔªËصļ¯ºÏ×÷Ëæ»úÖû». ÔÚµÚÒ»ÖÖÓ÷¨Àï,\
  9.  `n' ±ØÐëÊDz»³¬¹ý 1024 µÄÕýÕûÊý,\
  10.   ÔÚµÚ¶þÖÖÓ÷¨Àï, `n' ÊDZí `list' µÄÏîÊý. <br/>\
  11.   ¶ÔµÚÒ»ÖÖÓ÷¨, ÃüÁî·µ»ØÒ»¸ö¶ººÅ·Ö¸ôµÄ±í `i<sub>1</sub>, i<sub>2</sub>, ...,\
  12.   i<sub>n</sub>', ÆäÖеÄÏî `i<sub>k</sub>' ÊǼ¯ºÏ\
  13.   `{1,2,...,n}' ÖÐËæ»úÅÅÐòµÄÔªËØ. <br/>\
  14.  ±¾ÃüÁî¿ÉÓëÒÔÏÂÃüÁîÁ¬ÓÃ\
  15.  $(ref1)cmdlist_item_&cmd_choose=all$(ref2)cmdlist_item_">!item</a>,\
  16.  $(ref1)cmdlist_line_&cmd_choose=all$(ref2)cmdlist_line_">!line</a>,\
  17.  $(ref1)cmdlist_word_&cmd_choose=all$(ref2)cmdlist_word_">!word</a>,\
  18.  $(ref1)cmdlist_char_&cmd_choose=all$(ref2)cmdlist_char_">!char</a>,\
  19.  ÒÔ¶ÔÒ»¸ö´®µÄÏî¡¢ÐС¢´Ê»ò×Ö·û×÷Ëæ»úÖû». <br/>\
  20.  ¶ÔµÚ¶þÖÖÓ÷¨, ·µ»Ø¶Ô±í `list' ÀïµÄÏî×÷Ëæ»úÖû»µÄ½á¹û. <br/>\
  21.   ²»ÂÛºÎÖÖÇé¿ö, ±äÁ¿ `wims_shuffle_order' ¶¼±»¸³ÖµÎª±í\
  22.  `i<sub>1</sub>, i<sub>2</sub>, ..., i<sub>n</sub>'. <br/>\
  23.   Èç¹û³öÏÖÑ¡Ïî´Ê `even' »ò `odd', ÒâÖ¸Ö»×öż/ÆæÖû».
  24.