实验五

with open('data3.txt','r+', encoding='UTF-8') as f:
    num = [line.strip('\n') for line in f]
    num.pop(0)
    num_print = [eval(i) for i in num]
    print(f"原始数据:\n{num_print}")
    num_new = [round(eval(i)) for i in num]
    print(f'四舍五入后的数据:\n{num_new}')

with open('data3_processed.txt','w') as f:
    write1 = ['原始数据'] + [str(i) for i in num]
    write2 = ['四舍五入后的数据'] + [str(i) for i in num_new]
    for i in range(len(num)):
         f.write(f"{write1[i]}\t{write2[i]}\n")

　　

 

 

with open('data4.txt','r',encoding='utf-8') as f:
    list=[i.strip('\n').split('\t') for i in f]
a=list.pop(0)
list.sort(key=lambda x:(x[2],-int(x[3])))
print('\t'.join(a))
for i in list:
    print('\t'.join(i))
with open('data4_processed.txt','w',encoding='utf-8')as f:
    f.write('\t'.join(a))
    f.write('\n')
    for i in list:
        f.write('\t'.join(i))
        f.write('\n')

　　

 

 

with open('data5.txt','r',encoding='utf-8')as f:
    with open('data5_with_line.txt', 'w', encoding='utf-8') as f1:
        a=f.read().strip('\n')
        b = len(a.splitlines())
        print('行数:', b)
        e = len(a.split())
        print('单词数:', e)
        c = 0
        for c, number in enumerate(a):
            c += 1
        print('字符数:', c)
        d = 0
        for i in a:
            if i == ' ':
                d += 1
        print('空格数:', d)
        a=a.split('\n')
        n='\n'.join(a)

        for i in range(len(a)):
            f1.write(f'{i+1}.{a[i]}\n')