有一道题: 比较两个列表范围,如果包含的话,返回TRUE,否则FALSE。 详细题目如下:Create a function, this function receives two lists as parameters, each list indicates a scope of numbers, the function judges whether list2 is included in list1. Function signature: differ_scope(list1, list2) Parameters: list1, list2 - list1 and list2 are constructed with strings, each string indicates a number or a scope of numbers. The number or scope are randomly, can be overlapped. All numbers are positive. E.g. ["23", "44-67", "12", "3", "20-90"] Return Values: True - if all scopes and numbers indicated by list2 are included in list1. False - if any scope or number in list2 is out of the range in list1. Examples: case1 - list1 = ["23", "44-67", "12", "3", "20-90"] list2 = ["22-34", "33", 45", "60-61"] differ_scope(list1, list2) == True case2 - list1 = ["23", "44-67", "12", "3", "20-90"] list2 = ["22-34", "33", 45", "60-61", "100"] differ_scope(list1, list2) == False贴上自己写的代码如下:(备注: python 2.7.6)def differ_scope(list1, list2): print "list1:" + str(list1) print "list2:" + str(list2) #设置临时存放列表 list1_not_ = [] #用于存放列表1正常的数字值,当然要用int()来转换 list1_yes_ = [] #用于存放列表1中范围值如 44-67 list1_final = [] #用于存放列表1中最终范围值 如:[1,2,3,4,5,6,7,8,9,10] temp1 = []
#对列表1进行处理 for i in range(len(list1)): #用FOR循环对列表1进行遍历 tag = 0 if list1[i].find("-")>0:#对含范围的数字进行处理,放到list_yes_列表中 strlist = list1[i].split("-") list1_yes_ = range(int(strlist[0]),int(strlist[1])+1)#让其生成一个范围列表 for each in list1_yes_: #FOR循环遍历所有符合条件的. [temp1.append(each)] else: #对列表1中正常的数字进行处理,放到list_not_列表中 list1_not_.append(int(list1[i]))#对列表1中进行处理,放到list_yes_ [temp1.append(i) for i in list1_not_ if not i in temp1]#去除重复项 list1_final = sorted(temp1) #比较后,排序,并放到list1_final列表中 print "list1_final value is:" + str(list1_final)#打印排序后最终list1_final列表 #对列表2进行处理 for i in range(len(list2)): if list2[i].find("-")>0: strlist = list2[i].split("-") list2_yes_ = range(int(strlist[0]),int(strlist[1])+1) for each in list2_yes_: [temp2.append(each)] print "Temp2:" + str(temp2) else: list2_not_.append(int(list2[i])) [temp2.append(i) for i in list2_not_ if not i in temp2] list2_final = sorted(temp2) print "list2_final value is:" + str(list2_final) #对两个列表进行比较,得出最终比较结果. [temp.append(i) for i in list2_final if not i in list1_final]#比较两个列表差值. print "In list2 but not in list1:%s" % (temp)#打印出列表1与列表2的差值 if len(temp)>=1 : print "The result is: False" else: print "The result is: True"if __name__ == "__main__": list1 = ["23", "44-67", "12", "3","90-100"] list2 = ["22-34", "33", "45"] differ_scope(list1,list2)总结: 1. 这道题关键是想法,如果整成坐标的方式来比较,会很麻烦。 2. 列表转成范围后,如果消除重复项,同样是里面的关键所在。 3. 其次是对列表遍历的操作,同样挺重要。Python 的详细介绍:请点这里 Python 的下载地址:请点这里推荐阅读:《Python开发技术详解》.( 周伟,宗杰).[高清PDF扫描版+随书视频+代码] http://www.linuxidc.com/Linux/2013-11/92693.htmPython脚本获取Linux系统信息 http://www.linuxidc.com/Linux/2013-08/88531.htm