摘要：task3.py 1 def is_valid(y): 2 if len(y)==18: 3 y1=y[:17] 4 if y1.isdigit(): 5 for j in y: 6 y2=[] 7 y2.append(j) 8 m=['1','2','3','4','5','6','7','8', 阅读全文

摘要：task3.py 1 with open('data3.txt','r+', encoding='UTF-8') as f: 2 Z=[] 3 Y=[] 4 x=[] 5 for i in f: 6 x.append(i.strip('\n')) 7 newx=x[1:11] 8 for i in 阅读全文

摘要：task1.py 1 print(sum) 2 sum = 42 3 print(sum) 4 def inc(n): 5 sum = n+1 6 print(sum) 7 return sum 8 sum = inc(7) + inc(7) 9 print(sum) 1.Built-in 2.Gl 阅读全文