my_list = ['abc-123', 'def-456', 'ghi-789', 'abc-456']

for item in my_list:
    if (item.find('abc')) != -1:
        print ('Found at ', item)

如果您只需要知道“abc”是否在其中一项中，这是最短的方法：

if 'abc' in str(my_list):

注意：这假设“abc”是字母数字文本。如果“abc”可能只是一个特殊字符（即[]”，），请不要使用它。

def find_dog(new_ls):
    splt = new_ls.split()
    if 'dog' in splt:
        print("True")
    else:
        print('False')


find_dog("Is there a dog here?")

any('abc' in item for item in mylist)

如果要获取多个子字符串的数据列表

你可以这样改

some_list = ['abc-123', 'def-456', 'ghi-789', 'abc-456']
# select element where "abc" or "ghi" is included
find_1 = "abc"
find_2 = "ghi"
result = [element for element in some_list if find_1 in element or find_2 in element] 
# Output ['abc-123', 'ghi-789', 'abc-456']

问题：给出abc的信息

a = ['abc-123', 'def-456', 'ghi-789', 'abc-456']


aa = [ string for string in a if  "abc" in string]
print(aa)


Output =>  ['abc-123', 'abc-456']