with open('data6.csv', 'r', encoding='gbk') as f: raw_data = f.read().split('\n') title1 = ['原始数据'] data1 = [float(i) for i in raw_data[1:]] print(f'{title1[0]}:') print(data1) data2 = [int(float(i)+0.5) for i in data1] title2 = ['四舍五入后数据'] print(f'{title2[0]}:') print(data2) with open('data6_processed.csv', 'w', encoding='gbk', newline='') as f: f.write(title1[0] + ',' + title2[0] + '\n') for i in range(len(data1)): f.write(str(str(data1[i]) + ',' + str(data2[i]) + '\n'))
{task6}
with open('data6.csv', 'r', encoding = 'gbk') as f: data = f.readlines() print(f'{str(data[0].strip())}:') data.remove(data[0]) lst=[] for i in data: lst.append(float(i.strip())) print(lst) import csv
task7.py
with open('data7.csv', 'r', encoding='gbk') as f: data0 = f.readlines() data1 = [i.strip('\n').split(',') for i in data0] title1 = data1.pop(0) print(f'{title1[0]:10s}{title1[1]:10s}{title1[2]:10s}{title1[3]:10s}') data2 = sorted(data1, key=lambda x: (x[2], -int(x[3]))) for i in data2: print(f'{i[0]:10s}{i[1]:10s}{i[2]:10s}{i[3]:10s}') with open('data7_processed.csv', 'w', encoding='gbk') as f: f.write(','.join(title1) + '\n') for i in data2: f.write(','.join(i) + '\n')
task8.py
with open('hamlet.txt', 'r', encoding='utf-8') as f: data = f.read() print('hamlet.txt粗略统计:') print(f'行数:{len(data.splitlines())}') print(f'单词数:{len(data.split())}') print(f'字符数:{len(data)}') print(f'空格数:{data.count(" ")}') data1 = data.splitlines() with open('hamlet_with_line_number.txt', 'w', encoding='utf-8') as f: for number, words in enumerate(data1, 1): f.write(f'{number} {words}\n')
task9.py
import datetime def is_valid(x): if len(x) == 18 and x[:-1].isdigit() and (x[-1].isdigit() or x[-1] == 'X'): return True else: return False with open('data9_id.txt', 'r', encoding='utf-8') as f: data0 = f.readlines() title = data0.pop(0) data0 = [i.strip('\n').split(',') for i in data0] data1 = [] for i in data0: if is_valid(i[1]): data1.append(i) print(data1) t = datetime.datetime.now() y = t.strftime('%Y%m%d') for i in data1: age = str(int(y)-int(i[1][6:14])) i.append(age[:2]) i[1] = i[1][6:10] + '-' + i[1][10:12] + '-' + i[1][12:14] data2 = sorted(data1, key=lambda x: -int(x[2])) print('姓名, 出生日期, 年龄') for i in data2: print(', '.join(i))
task10_1.
import random import datetime with open('data10_stu.txt', 'r', encoding='utf-8') as f: data = f.readlines() data0 = [i.strip('\n').split('\t') for i in data] n = eval(input('输入随机抽点人数:')) data1 = random.sample(data0, n) for i in data1: print(' '.join(i)) t = datetime.datetime.now() title = t.strftime('%Y%m%d') with open(f'{title}.txt', 'w', encoding='utf-8') as f: for i in data1: f.write(f'{i[0]}\t{i[1]:6s}\t{i[2]:10s}\n')
task10_2.
import datetime t = datetime.datetime.now() filename = t.strftime('%Y%m%d') + '.txt' start='抽取开始' print(start.center(50,'*')) with open('data10_stu.txt', 'r', encoding='utf-8') as f: data = f.readlines() def random_selection(n): import random demo = random.sample(data, n) return demo selection=set() numbers=[] while True: n = eval(input('输入随机抽点人数:')) if n != 0: x=random_selection(n) for i in x: print(i) data.remove(i) with open(filename,'a',encoding='utf-8') as f : f.writelines(i) else: print('抽取结束'.center(50,'*')) break
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