deffind_all_occurrences(string,sub_string):positions=[]start=0whileTrue:position=string.find(sub_string,start)ifposition==-1:breakpositions.append(position)start=position+1returnpositions# 示例text="Hello, hello, hello, World!"sub_text="hello"positions=find_all_occurrences(text.lower(),sub_text....
下面是一个代码示例,演示了如何使用列表推导式查找字符串中多次出现的位置: deffind_all_occurrences(string,sub_string):return[indexforindex,charinenumerate(string)ifchar==sub_string]# 示例用法string="abracadabra"sub_string="a"occurrences=find_all_occurrences(string,sub_string)print(occurrences)# 输出 [...
我们可以使用 re 模块中的 findall() 函数。 这是代码。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 importre # Sample text text="Python is an amazing programming language. Python is widely used in various fields."# Find all occurrencesof'Python'matches=re.findall("Python",text)# Outpu...
print("first occurrence of number:", match.group()) # 输出:first occurrence of number: 123 print("all occurrences of number:", re.findall("d+", s)) # 输出:all occurrences of number: ['123'] 使用第三方库fuzzywuzzy进行模糊匹配 from fuzzywuzzy import fuzz s1 = "Hello world" s2 = "h...
to find : " + substr) # using list comprehension + startswith() # All occurrences of ...
text = "This is a sample text. We will use this text to count the occurrences of each word.":定义了一个测试文本。 word_count = count_words(text):调用count_words函数,将测试文本作为参数传递,并将结果保存在word_count变量中。 for word, count in word_count.items()::遍历word_count字典中的...
def find_all_occurrences(self, string, sub_string): ''' Return a list of all the positions of the sub_string in the string.''' positions = [] start = 0 while True: position = string.find(sub_string, start) if position == -1: ...
sub) Help on function sub in module re: sub(pattern, repl, string, count=0, flags=0) Return the string obtained by replacing the leftmost non-overlapping occurrences of the pattern in string by the replacement repl. repl can be either a string or a callable; if a string, backslash ...
text = "This is a sample text. We will use this text to count the occurrences of each word.":定义了一个测试文本。 word_count = count_words(text):调用 count_words 函数,将测试文本作为参数传递,并将结果保存在 word_count 变量中。
x = mycol.find_one() print(x) Run example » Find All To select data from a table in MongoDB, we can also use thefind()method. Thefind()method returns all occurrences in the selection. The first parameter of thefind()method is a query object. In this example we use an empty query...