法1：观察日期格式
- 月份可能是一位数也可能是两位数，但是日期一定是两位数。
序号,星座,开始月日,结束月日,Unicode 1,水瓶座,120,218,9810 2,双鱼座,219,320,9811 3,白羊座,321,419,9800 4,金牛座,420,520,9801 5,双子座,521,621,9802 6,巨蟹座,622,722,9803 7,狮子座,723,822,9804 8,处女座,823,922,9805 9,天秤座,923,1023,9806 10,天蝎座,1024,1122,9807 11,射手座,1123,1221,9808 12,魔蝎座,1222,119,9809 讯享网
- 所以可以编写如下代码（书上参考代码）：
讯享网fo = open("PY301-SunSign.csv", 'r',encoding='UTF-8') ls = [] for line in fo.readlines(): ls.append(line.replace("\n", '').split(',')) # li = line.strip().split(',') sall = input('请输入星座序号(例如,5 10):') while sall != '': lsNum = sall.split() for s in lsNum: for i in range(len(ls)): if s == ls[i][0]: print("{}({})的生日是{}月{}日至{}月{}日之间".format(ls[i][1],ls[i][4],ls[i][2][:-2],ls[i][2][-2:],ls[i][3][:-2],ls[i][3][-2:])) sall = input('请输入星座序号(例如,5 10):')
法2：通过分支结构判断生日位数
- 此法仅做参考，过于繁琐，这也是缺乏思考的代价。相较于上面的代码而言，这个代码太繁琐了。
f = open('PY301-SunSign.csv','r',encoding='utf8') lines = f.readlines() numbers = input('请输入星座序号(例如,5 10):') for num in numbers.split(): for line in lines: line = line.strip().split(',') if num == line[0]: start_m = [] start_d = [] end_m = [] end_d = [] if len(line[2]) == 3 and len(line[3]) == 3: start_m = line[2][:1] start_d = line[2][1:] end_m = line[3][:1] end_d = line[3][1:] elif len(line[2]) == 3 and len(line[3]) == 4: start_m = line[2][:1] start_d = line[2][1:] end_m = line[3][:2] end_d = line[3][2:] elif len(line[2]) == 4 and len(line[3]) == 3: start_m = line[2][:2] start_d = line[2][2:] end_m = line[3][:1] end_d = line[3][1:] else: start_m = line[2][:2] start_d = line[2][2:] end_m = line[3][:2] end_d = line[3][2:] print("{}({})的生日是{}月{}日至{}月{}日之间".format(line[1],line[-1],start_m,start_d,end_m,end_d)) numbers = input('请输入星座序号(例如,5 10):') 第三题参考代码
讯享网fo = open("PY301-SunSign.csv", 'r',encoding='UTF-8') ls = [] for line in fo.readlines(): ls.append(line.replace("\n", '').split(',')) # li = line.strip().split(',') sall = input('请输入星座序号(例如,5 10):') while sall != '': lsNum = sall.split() for s in lsNum: if 1 <= int(s) <=12: for i in range(len(ls)): if s == ls[i][0]: print("{}({})的生日是{}月{}日至{}月{}日之间".format(ls[i][1],ls[i][4],ls[i][2][:-2],ls[i][2][-2:],ls[i][3][:-2],ls[i][3][-2:])) else: print("输入星座序号有误！") sall = input('请输入星座序号(例如,5 10):')
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