锘??xml version="1.0" encoding="utf-8" standalone="yes"?>97蜜桃久久,欧美日韩国产精品专区,久久精品免费电影http://www.aygfsteel.com/sk8boy/category/11994.htmlzh-cnThu, 01 Mar 2007 01:45:49 GMTThu, 01 Mar 2007 01:45:49 GMT60Python涓殑鍏冪粍鍒囩墖http://www.aygfsteel.com/sk8boy/archive/2006/06/07/51194.html鎬濊?/dc:creator>鎬濊?/author>Wed, 07 Jun 2006 10:38:00 GMThttp://www.aygfsteel.com/sk8boy/archive/2006/06/07/51194.htmlhttp://www.aygfsteel.com/sk8boy/comments/51194.htmlhttp://www.aygfsteel.com/sk8boy/archive/2006/06/07/51194.html#Feedback0http://www.aygfsteel.com/sk8boy/comments/commentRss/51194.htmlhttp://www.aygfsteel.com/sk8boy/services/trackbacks/51194.html
a=(0,1,2,3)
b=a[x:y]
print聽b
榪欓噷闈㈡垜浠亣璁緓鍜寉鏄彉閲忋傛垜浠彲浠ュ皢a鐪嬩綔
聽聽 0聽聽 1聽聽 2聽聽 3
聽聽聽聽聽聽聽聽聽聽聽聽
聽聽 ^聽聽聽 ^聽聽 ^聽聽 ^
鹵0聽聽 1聽聽 2聽聽 3
聽 -4聽 -3聽 -2聽 -1
涔熷氨鏄錛寈=1鍜寈=-3浠ｈ〃鐩稿悓鐨勪綅緗傚悓鐞嗭紝y=3璺焬=-1涔熶唬琛ㄧ浉鍚岀殑浣嶇疆銆傝繖鏍鳳紝鍒囩墖a[x:y]涓紝x鍜寉鍒嗗埆琛ㄧず鍏冪粍a涓厓绱犵殑浣嶇疆銆傚茍涓旓紝姝ゆ椂x鐨勪綅緗竴瀹氬湪y鐨勫乏闈€傚鑻ヤ笉鐒?dòng)灱宐灝嗗緱鍒頒竴涓┖鐨勫厓緇?)銆?br />
>>>聽a=(0,1,2,3)
>>>聽print聽a[0:0]
()
>>>聽print聽a[0:3]
(0,聽1,聽2)
>>>聽print聽a[0:5]
(0,聽1,聽2,聽3)
>>>聽print聽a[-3:2]
(1,)
>>>聽print聽a[1:-1]
(1,聽2)
>>>聽print聽a[1:2]
(1,)
>>>聽print聽a[1:3]
(1,聽2)
>>>聽print聽a[2:1]
()
>>>聽print聽a[-4:-3]
(0,)
>>>聽print聽a[-3:-4]
()
>>>聽


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