实验5

实验任务3

task3.py

with open('data3.txt','r',encoding='utf-8') as f:
    l = f.readlines()
    ly = []
    lx = ['四舍五入后的数据']
    ls = []
    for i in l:
        s = i.strip('\n')
        ly.append(s)
        for j in s:
            if j == '.':
                if s[-1]>='5':
                    lx.append(str(int(s[:-2])+1))
                if s[-1]<'4':
                    lx.append(s[:-2])
            if '.' not in s and s!='原始数据':
                lx.append(s)
    for i in range(len(l)):
        ls.append(ly[i]+'''      '''+lx[i]+'\n')
    with open('data3_processed', 'w', encoding='utf-8') as f:
        for i in ls:
            f.write(i)
print(f'前数据{ly[1:]}')
print(f'后数据{lx[1:]}')

实验任务4

task4.py

with open('data4.txt','r',encoding='utf-8') as f:
    data = f.readlines()
    l = []
    for i in data:
        l.append(i.strip('\n').split('\t'))
ls = l.pop(0)
for i in l:
    l.sort(key=lambda i:(i[2],-int(i[-1])))
print('\t'.join(ls))
for i in l:
    print('\t'.join(i))
with open('data4_processed.txt','w',encoding='utf=8') as f:
    f.write('\t'.join(ls))
    for i in l:
        f.write('\n')
        f.write('\t'.join(i))

实验任务5

task5.py

 

with open('data5.txt','r',encoding='utf_8') as f:
    l_text = f.readlines()
    text = ''.join(l_text)
    words = len(text.split())
    space = 0
    strings = len(text)
    lines = len(l_text)
    for s in text:
        if s == ' ':
            space+=1
print(f'行数:{lines}')
print(f'单词数:{words}')
print(f'空格数:{space}')
print(f'字符数:{strings}')
with open('data5_with_line.txt','w',encoding='utf-8') as f:
    n = 1
    for i in l_text:
        f.write(str(n)+' '+i)
        n+=1