实验5

测试1

with open('data1_1.txt', 'r', encoding = 'utf-8') as f:
    data = f.readlines()
n = 0
for line in data:
    if line.strip('\n') == '':
        continue
    n += 1
print(f'共{n}行')

 

 测试2

with open('data2.txt', 'r', encoding = 'utf-8') as f:
    data = f.read().split('\n')
unique_line = []
for line in data:
    if data.count(line) == 1:
        unique_line.append(line)
print(f'共{ len(unique_line) }独特行')
for i in unique_line:
    print(i)

 

 测试3

with open('data3.txt', 'r', encoding = 'utf-8') as f:
    data = f.read().split('\n')
data0=data.copy()
for s in range(len(data0)):
    data0[s]=data0[s]+'\t'
print(data0)
for i in range(1,len(data)):
    data[i]=eval(data[i])
    if data[i]-int(data[i])>=0.5:
        data[i]=int(data[i])+1
    else:
        data[i]=int(data[i])
data[0]='四舍五入后数据'
for j in range(len(data)):
    data[j]=str(data[j])+'\n'
print(data)
data2=[]
for x,y in zip(data0,data):
    z=x+y
    data2.append(z)
print(data2)
with open('data3.txt', 'w', encoding = 'utf-8') as f:
    f.write(''.join(data2))

测试4

with open('data4.txt', 'r', encoding = 'utf-8') as f:
    data = f.read().split('\n')
for line in range(len(data)):
    data[line]=data[line].split('\t')
data1=data[1:]
for i in data1:
    i[0],i[2]=i[2],i[0]
data1=sorted(data1)
for i in data1:
    i[0],i[2]=i[2],i[0]
    i[0],i[3]=i[3],i[0]
data2=data1[:-2]
data2.sort(reverse=True)
for i in data1:
    i[0],i[3]=i[3],i[0]
data2.append(data1[-1])
data2.append(data1[-2])
data3=[]
for j in data2:
    data3.append('\t'.join(j))
for s in range(len(data3)):
    data3[s]=data3[s]+'\n'
with open('data4.txt', 'w', encoding = 'utf-8') as f:
    f.write(''.join(data3))

 

 

 测试5

with open('data5.txt', 'r', encoding = 'utf-8') as f:
    data = f.read()
n1=0
n2=0
n3=0
n4=0
for i in data:
    n4=n4+1
    if i==' ':
        n3=n3+1
data=data.split('\n')
n1=len(data)
for line in range(len(data)):
    data[line]=data[line].split(' ')
    n2=n2+len(data[line])
print('行数：'+str(n1))
print('单词数：'+str(n2-1))
print('空格数：'+str(n3))
print('字符数:'+str(n4))
with open('data5.txt', 'r', encoding = 'utf-8') as f:
    data = f.read().split('\n')
for j in range(len(data)):
    data[j]=str(j+1)+':'+data[j]
with open('data5.txt', 'w', encoding = 'utf-8') as f:
    f.write('\n'.join(data))