# 实验五

#task3.py
with open('data3.txt', 'r', encoding='utf-8') as f:
a = data.split('\n')
y = a.pop(0)
b = []
for i in a:
x = eval(i)
if x-int(x) < 0.5:
b.append(int(eval(i)))
elif 0.5 <= x-int(x):
b.append(int(eval(i))+1)
with open('data3_processed.txt', 'w', encoding='utf-8') as g:
g.write('{:<10} {:>10}\n'.format(y, '四舍五入后的数据'))
for i in range(len(a)):
g.write('{:<14}{:>5}\n'.format(a[i], b[i]))
print(f'原始数据：\n{a}\n四舍五入后的数据：\n{b}')

#task4.py
with open('data4.txt', 'r', encoding='utf-8') as f:
a = data.split('\n')
m = a.pop(0)
x = []
for i in a:
a = i.split('\t')
x.append(a)
y = sorted(x, key=lambda x:(x[2], x[3]), reverse=True)
with open('data4_processed.txt', 'w', encoding='utf-8') as g:
g.write(m + '\n')
print(m)
for n in y:
g.write('\t'.join(n))
g.write('\n')
print('\t'.join(n))

#task5.py
with open('data5.txt', 'r', encoding='utf-8') as f:
a = data.split('\n')
b = '\n'.join(a)
space_counts = 0
with open('data5_with_line.txt', 'w', encoding='utf-8') as g:
for i in range(len(a)):
for x in a[i]:
if x == ' ':
space_counts += 1
else:
space_counts = space_counts
g.write(f'{i+1} {a[i]}\n')
print(f'''行数：{len(a)}

posted @ 2022-05-17 13:10  bamboosama  阅读(7)  评论(3编辑  收藏  举报