实验5

task3.
mport math
f1=open('D:\\data3.txt','r')
list1,list2=[],[]
for line in f1.readlines():
    line=line.strip('\n')

    list1.append(line)
print(list1[0])
del list1[0]
print(list1)
for i in list1:
    i=float(i)
    if i +0.5>=int(i)+1:
        i=math.ceil(i)
    else:
        i=int(i)
    list2.append(i)
f2=open('D:\\data3.new.txt','w')
f2.write('原始数据:\t四舍五入数据:\n')
for i in range(len(list1)):
    f2.write(f'{list1[i]}\t{list2[i]}\n')
f2.close()
print(f'四舍五入数据:\n{list2}')

f1=open('D:\\data4.txt','r')
list1=[]
for line in f1.readlines():
    line=line.split()
    list1.append(line)
b=list1[0];del list1[0]
list1.sort(key=lambda x : (x[2],-int(x[3])))
list1.insert(0,b)
f2=open('D:\\data4_processed.txt','w')
task。4
list3=[]
for i in list1:
    list2=[]
    for x in i:
        if x!=i[-1]:
            y=x+'\t'
        else:
            y=x+'\n'
        list2.append(y)

    list3=list3+list2
for i in range(len(list3)):
    f2.writelines(list3[i])
f2.close()
for i in list3:
    for x in i:
        print(x,end='')

task.5
f1=open('D:\\data5.txt','r')
list1,list2,list3=[],[],[]

sum=0
for s in f1.read():
    list1.append(s)
f1.close()
dic={'行数:':0,'单词数:':0,'空格数:':0,'字符数:':0}
for i in list1:
    if i==' ':
        dic['空格数:']+=1
dic['字符数:']=len(list1);
f1=open('D:\\data5.txt','r')

for i in f1.readlines():
    list3.append(i)
    list2.append(i.split())
dic['行数:']=len(list3)
for i in list2:
    dic['单词数:']+=len(i)
for i,x in dic.items():
    print(i,x)
f2=open('D:\\data5_with_line.txt','w')
i=1
for i in range(len(list3)):
    f2.writelines(str(i+1)+'\t'+list3[i])
f2.close()