实验五
with open('data3.txt', 'r', encoding='utf-8') as f: data = f.read().strip().split('\n') data[0] = '原始数据' + '\t' + '四舍五入后数据' + '\n' for i in range(1, len(data)): data[i] = data[i] + '\t\t' + str(int(eval(data[i]) + 0.4)) + '\n' with open('data3.txt', 'w', encoding='utf-8') as f: f.writelines(data)
实验四:
with open('data4.txt', 'r',encoding = 'utf-8') as f: data = f.read().split('\n') for i in range(1,len(data)): data[i]=data[i].split('\t') data1=data[1:].copy() data1.sort(key=lambda x:(x[2],-int(x[3])),reverse = False) data[0]+='\n' for i in range(len(data1)): for j in range(len(data1[i])): if j==3: data1[i][j]+='\n' else: data1[i][j]+='\t' data[i+1]=''.join(data1[i]) with open('data6.txt', 'w',encoding = 'utf-8') as f: f.writelines(data) with open('data4.txt', 'r',encoding = 'utf-8') as f: data = f.read() print(data)
实验五:
data=[] word1=0 word2=0 word3=0 with open('data5.txt', 'r',encoding = 'utf-8') as f: for i in f: data.append(i) for i in range(len(data)): word1+=len(data[i].split(' ')) word2+=len(data[i]) word3+=data[i].count(' ') print('行数:',len(data)) print('单词数:',word1) print('字符数:',word2) print('空格数',word3) for i in range(len(data)): data[i]=str(i+1)+' '+data[i] with open('data5.txt', 'w',encoding = 'utf-8') as f: f.writelines(data)