实验5

task3.py

with open('data3.txt','r',encoding= 'utf-8') as f:
    data = f.readlines()
    d = [eval(line) for line in data[1:]]
print('原始数据: ')
print(d)
t = []
for i in d:
    x = float(i)
    y = int(x)
    if x-y >= 0.5:
        y += 1
        t.append(y)
    else:
        y = y
        t.append(y)
print('四舍五入后数据: ')
print(t)
s = ['原始数据\t四舍五入后数据\t\n']
for a,b in zip(d,t):
    s.append(str(a)+'\t'+'          '+str(b)+'\n')
with open('data3_processed.txt','w',encoding='utf-8') as f:
    f.write(''.join(s))

task4.py

with open('data4.txt','r',encoding='utf-8') as f:
    with open('data4_processed.txt', 'w', encoding='utf-8') as f1:
        data = f.readlines()
        d = [i.strip('\n').split('\t') for i in data]
        t = d.pop(0)
        data2 = [sorted(d,key=lambda t: (t[2], -int(t[3])))]
        print('\t\t'.join(t))
        f1.write('\t\t'.join(t) + '\n')
        for i in data2:
            for j in i:
                print('\t'.join(j))
                f1.write('\t'.join(j)+'\n')

 task5.py

with open('data5.txt','r',encoding= 'utf-8') as f:
    data = f.read()
a = len(data.splitlines())
b = len(data.split())
c = 0
for i in data:
    if i == ' ':
        c += 1
d = len(data)
print(f'行数:{a}')
print(f'单词数:{b}')
print(f'空格数:{c}')
print(f'字符数:{d}')
with open('data5_with_line.txt','w',encoding='utf-8') as f:
    for t in range(a):
        f.write(str(t+1)+'  '+data.split('\n')[t]+'\n')