摘要：1 def is_valid(a): 2 if len(a) == 18: 3 if a[-1] == 'Y': 4 return False 5 else: 6 return True 7 else: 8 return False 9 10 11 with open('data3_id.txt', 阅读全文

摘要：with open('data3.txt', 'r', encoding='utf-8') as f: data = f.read().split('\n') yuanben = data.pop(0) data1 = [eval(i) for i in data] data2 = [round(i 阅读全文

摘要：1 print(sum) 2 sum = 42 3 print(sum) 4 5 def inc(n): 6 sum = n + 1 7 print(sum) 8 return sum 9 10 sum = inc(7) + inc(7) 11 print(sum) 不是 line1作用域为line 阅读全文