请优化这段代码:def continuous(n): flag = 1 for i in range(len(n)): if i == 0: continue elif i == len(n)-1: break else: if n[i-1] == n[i] and n[i] == n[i+1]: flag = 0 return flag def subtraction(n): flag = 1 for i in range(len(n)): if flag == 0: break elif i == 0: continue elif i == len(n)-1: break else: if abs(int(n[i-1])-int(n[i])) > 4 or abs(int(n[i])-int(n[i+1])) > 4 : flag = 0 break return flag def all(n): flag = 1 for i in range(len(n)): if int(n[i]) > 6: flag = 0 break return flag def judge(n): flag = 1 a = continuous(n) b = subtraction(n) c = all(n) if a != 1 or b != 1 or c != 1: flag = 0 return flag N = int(input()) n = 0 while n < N: t1, t2 = map(str,input().split()) if judge(t1) != 1 or len(t1) != 6: print("输入门票有误") break if judge(t2) != 1 or len(t2) != 6: print("输入门票有误") break t1,t2 = int(t1), int(t2) for i in range(t1,t2+1): print("{:6d}".format(i).replace(" ","0")) print("") n += 1
时间: 2024-02-14 16:07:39 浏览: 69
py代码-测试append和+=.py
以下是对代码进行的一些优化:
1. 在 `continuous`、`subtraction` 和 `all` 函数中,可以使用 `any` 和 `all` 函数来简化代码:
```python
def continuous(n):
return not any(n[i-1] == n[i] == n[i+1] for i in range(1, len(n)-1))
def subtraction(n):
return all(abs(int(n[i-1])-int(n[i])) <= 4 and abs(int(n[i])-int(n[i+1])) <= 4 for i in range(1, len(n)-1))
def all(n):
return all(int(digit) <= 6 for digit in n)
```
2. 在 `judge` 函数中,可以直接将三个子函数的返回值相乘,来判断是否所有条件都满足:
```python
def judge(n):
return all((continuous(n), subtraction(n), all(n)))
```
3. 在主函数中,可以直接使用 `try-except` 来捕获输入门票有误的情况,而不需要在每个判断中都输出错误信息。此外,可以使用 `range` 函数的 step 参数来避免使用 `while` 循环:
```python
N = int(input())
for n in range(N):
try:
t1, t2 = map(str,input().split())
t1,t2 = int(t1), int(t2)
if not (6 <= len(t1) <= 6 and 6 <= len(t2) <= 6 and judge(t1) and judge(t2)):
raise ValueError("输入门票有误")
for i in range(t1,t2+1):
print(f"{i:06}")
print()
except ValueError as e:
print(e)
```
在这个版本的代码中,主函数中使用了 `try-except` 来捕获 `ValueError` 异常,如果输入的门票有误,则会输出错误信息,否则直接进行门票编号的生成和输出。
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