Executes the provided function once for each list element.
- Use a
forloop to executefnfor each element initr.
代码实现
def for_each(itr, fn):
for el in itr:
fn(el)使用样例
for_each([1, 2, 3], print) # 1 2 3Executes the provided function once for each list element.
for loop to execute fn for each element in itr.
def for_each(itr, fn):
for el in itr:
fn(el)for_each([1, 2, 3], print) # 1 2 3