Executes the provided function once for each list element, starting from the list’s last element.
- Use a
for
loop in combination with slice notation to executefn
for each element initr
, starting from the last one.
代码实现
def for_each_right(itr, fn):
for el in itr[::-1]:
fn(el)
使用样例
for_each_right([1, 2, 3], print) # 3 2 1