我们可以用逗号（，）分割输入句子，然后搜索单个术语。如果没有找到，我们将退出，否则如果所有的都找到了，只需打印'是的，它在那里'

string = 'algorithms, c, software design, oop, java, software engineering, data structures, satellite, python, mobile, infrastructure, .net'
enter = input('Enter search: ')

for word in enter.split(","):
    if word not in string:
        exit()
print('Yes, it is in there')

添加if/else
片段：

string ='algorithms, c, software design, oop, java, software engineering, data structures, satellite, python, mobile, infrastructure, .net'
enter = input('Enter search: ')

if enter in string:
    print('Yes, it is in there')
else:
    print('No, it is in there')

输出：

Enter search: tkinter
No, it is in there

Enter search: python
Yes, it is in there

试试用这个：

string = 'algorithms, c, software design, oop, java, software engineering, data structures, satellite, python, mobile, infrastructure, .net'

word_dict = {word.strip(): True for word in 
string.split(',')}

enter = input('Enter search terms (comma-separated): ')


search_terms = [term.strip() for term in enter.split(',')]

if all(term in word_dict for term in search_terms):

    print('Yes, all search terms are in there')

else:

    print('Not all search terms are present')