[問題] recursion的問題
http://codepad.org/1NQMZbUP
看不懂這個recursion
字串倒印的
為什麼它可以一直刪掉第一個?
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◆ From: 112.104.46.6
→
03/20 19:20, , 1F
03/20 19:20, 1F
推
03/20 19:21, , 2F
03/20 19:21, 2F
→
03/20 19:21, , 3F
03/20 19:21, 3F
推
03/20 19:26, , 4F
03/20 19:26, 4F
→
03/20 19:35, , 5F
03/20 19:35, 5F
→
03/20 19:50, , 6F
03/20 19:50, 6F
推
03/20 22:32, , 7F
03/20 22:32, 7F
→
03/20 22:38, , 8F
03/20 22:38, 8F
→
03/20 23:03, , 9F
03/20 23:03, 9F
→
03/20 23:08, , 10F
03/20 23:08, 10F
→
03/20 23:18, , 11F
03/20 23:18, 11F
→
03/20 23:19, , 12F
03/20 23:19, 12F
→
03/20 23:27, , 13F
03/20 23:27, 13F
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