Python的函数式编程与内置函数5-filter函数

一。去除所有sb人员

movie_people=[‘sb_alex’,‘sb_lzp’,‘sb_yxm’,‘zxl’,‘wjs’]

1.循环方法

movie_people=['sb_alex','sb_lzp','sb_yxm','zxl','wjs']
ret=[]
for p in movie_people:
    if not p.startswith('sb'):
        ret.append(p)
print(ret)

2.函数方法

movie_people=['sb_alex','sb_lzp','sb_yxm','zxl','wjs']
def filter_test(x):
    ret = []
    for p in x:
        if not p.startswith('sb'):
            ret.append(p)
    return ret
print(filter_test(movie_people))

3.高阶函数方法

movie_people=['alex-sb','lzp_sb','yxm_sb','zxl','wjs']
def sb_show(n):#末尾为sb
    return n.endswith('sb')
def filtr_test(func,accay):
    ret=[]
    for p in accay:
        if not func(p):
            ret.append(p)
    return ret
res=filtr_test(sb_show,movie_people)
print(res)

4.终极版本

movie_people=['alex-sb','lzp_sb','yxm_sb','zxl','wjs']
def filter_test(func,accay):
    ret=[]
    for p in accay:
        if not func(p):
            ret.append(p)
    return ret
res = filter_test(lambda x:x.endswith('sb'),movie_people)
print(res)

五。filter函数总结

movie_people=['alex-sb','lzp_sb','yxm_sb','zxl','wjs']
print(filter(lambda x:x.endswith('sb'),movie_people))
print(list(filter(lambda x:not x.endswith('sb'),movie_people)))

来源：CSDN

作者：政蓬

链接：https://blog.csdn.net/weixin_45147782/article/details/104292889