‘‘‘
【程序1】
題目：有1、2、3、4個數(shù)字，能組成多少個互不相同且無重復數(shù)字的三位數(shù)？都是多少？
1.程序分析：可填在百位、十位、個位的數(shù)字都是1、2、3、4。組成所有的排列后再去
　　　　　　掉不滿足條件的排列。?
2.程序源代碼：
‘‘‘
for?i?in?range（15）:
????for?j?in?range（15）:
????????for?k?in?range（15）:
????????????if（?i?!=?k?）?and?（i?!=?j）?and?（j?!=?k）:
????????????????print?ijk

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????I.A....???????390??2007-09-15?11:46??python趣味編程100例（99個）\JCP001.py

????I.A....??????1093??2007-09-15?13:09??python趣味編程100例（99個）\JCP002.py

????I.A....???????782??2007-09-15?13:28??python趣味編程100例（99個）\JCP003.py

????I.A....???????649??2007-09-15?13:44??python趣味編程100例（99個）\JCP004.py

????I.A....???????362??2007-09-15?14:02??python趣味編程100例（99個）\JCP005.py

????I.A....???????245??2007-09-15?14:02??python趣味編程100例（99個）\JCP006.py

????I.A....???????392??2007-09-15?17:34??python趣味編程100例（99個）\JCP007.py

????I.A....???????530??2007-09-15?14:23??python趣味編程100例（99個）\JCP008.py

????I.A....???????583??2007-09-15?15:04??python趣味編程100例（99個）\JCP009.py

????I.A....???????374??2007-09-15?15:10??python趣味編程100例（99個）\JCP010.py

????I.A....???????660??2007-09-15?15:22??python趣味編程100例（99個）\JCP011.py

????I.A....???????589??2007-09-15?15:29??python趣味編程100例（99個）\JCP012.py

????I.A....???????444??2007-09-15?15:32??python趣味編程100例（99個）\JCP013.py

????I.A....???????699??2007-09-15?15:40??python趣味編程100例（99個）\JCP014.py

????I.A....???????403??2007-09-15?15:49??python趣味編程100例（99個）\JCP015.py

????I.A....???????535??2007-09-15?16:09??python趣味編程100例（99個）\JCP017.py

????I.A....???????410??2007-09-15?16:17??python趣味編程100例（99個）\JCP018.py

????I.A....???????569??2007-09-15?17:06??python趣味編程100例（99個）\JCP019.py

????I.A....???????344??2007-09-15?17:11??python趣味編程100例（99個）\JCP020.py

????I.A....???????418??2007-09-15?17:16??python趣味編程100例（99個）\JCP021.py

????I.A....???????742??2007-09-15?20:18??python趣味編程100例（99個）\JCP022.py

????I.A....???????579??2007-09-15?20:25??python趣味編程100例（99個）\JCP023.py

????I.A....???????565??2007-09-15?20:36??python趣味編程100例（99個）\JCP024.py

????I.A....???????412??2007-09-15?20:53??python趣味編程100例（99個）\JCP025.py

????I.A....???????275??2007-09-15?20:58??python趣味編程100例（99個）\JCP026.py

????I.A....???????329??2007-09-15?21:14??python趣味編程100例（99個）\JCP027.py

????I.A....???????494??2007-09-15?21:17??python趣味編程100例（99個）\JCP028.py

????I.A....???????560??2007-09-15?21:26??python趣味編程100例（99個）\JCP029.py

????I.A....???????340??2007-09-15?21:40??python趣味編程100例（99個）\JCP030.py

????I.A....??????1202??2007-09-15?22:26??python趣味編程100例（99個）\JCP031.py

............此處省略70個文件信息