实验6
def is_valid(x): ls=[str(i) for i in range(0,10)] ls.append('X') if len(x)<18: return False for a in range(len(x)): if x[a] not in ls: return False break if a==len(x)-1: return True with open('data3_id.txt','r',encoding='utf_8')as f: t=f.readlines() b=[i.strip('\n').split(',') for i in t] for i in b: if is_valid(i[1])==True: i[1]=i[1][6:10]+'-'+i[1][10:12]+'-'+i[1][12:14] else: i[1]=i[1] for i in range(len(b)): b[i]=','.join(b[i]) for i in b: if len(i)<18: print(i) else: pass
import random with open('data5.txt','r',encoding='utf_8')as f: n=eval(input('请输入抽取人数:')) x=list(range(10)) t=random.sample(x,n) a=f.readlines() b=[] for i in t: b.append(a[i].strip('\n')) for i in b: print(i) with open('data6.txt','w',encoding='utf_8')as f: for i in range(len(b)): b[i]=b[i]+'\n' f.writelines(b)
import random with open('data5.txt','r',encoding='utf_8')as f: n=eval(input('请输入抽取人数:')) x=list(range(10)) t=random.sample(x,n) a=f.readlines() while n!=0: b=[] for i in t: b.append(a[i].strip('\n')) x.remove(i) for i in b: print(i) n=eval(input('请输入抽取人数:')) t=random.sample(x,n) with open('data6.txt','w',encoding='utf_8')as f: for i in range(len(b)): b[i]=b[i]+'\n' f.writelines(b)