in lines: words = line.split() # 将每一行按空格分割成单词列表 for word in words: if target in word: print(word) # 示例用法 string = """ This is a sample string. It contains multiple lines. Each line has multiple words. """ target = "ple" find_and_print_instances(string, target...
text="Learning Python is essential for programming."finder=StringFinder()substrings=["Python","Java","programming"]results1=finder.find_multiple_substrings(text,substrings)print(results1)# Output: {'Python': 9, 'Java': 'Not Found', 'programming': 20}patterns=["Learning","Python","C++"]r...
``` # Python script to rename multiple files in a directory import os def rename_files(directory_path, old_name, new_name): for filename in os.listdir(directory_path): if old_name in filename: new_filename = filename.replace(old_name, new_name) os.rename(os.path.join(directory_path...
Using find() Method To find the character in a string in Python: Use the find() method to find the index of the first occurrence of the supplied character in the input String. Use an if statement to check if the returned index is not -1; if so, print that index; otherwise, print ...
str.find(sub[, start[, end]])在字符串中查找sub,找到后返回位置,没找到返回-1. Return the lowest index in the string where substring sub is found, such that sub is contained in the range [start, end]. Optional arguments start and end are interpreted as in slice notation. Return -1 if...
It contains multiple lines. Each line can have different characters."""char='a'result=find_char_in_string(string,char)ifresult:print(f"找到字符 '{char}' 在字符串中的那一行数据:{result}")else:print(f"字符 '{char}' 在字符串中未找到") ...
>>> str='string learn' >>> str.startswith('str') #判断字符串以'str'开头 True >>> str.endswith('arn') #判读字符串以'arn'结尾 True 字符串搜索定位与替换 >>> str='string lEARn' >>> >>> str.find('a') #查找字符串,没有则返回-1,有则返回查到到第一个匹配的索引 ...
limit=pattern_limit.findall(string)#匹配成功,其中luckyhappy和happy_test不属于匹配成功的对象print("limit",limit) 结果 2.3.1 ^与\A,$与\Z 注意^和\A,$和\Z看似都匹配开头和结尾,但在多行模式下存在差异,如下例子 importre str="Have a wonderful\nhope in python\nstudy"#str内容为3行,\n表示换行...
print("$ in multiple line:",re.findall("python$", str, re.MULTILINE)) # 在多行模式下找到匹配项,会匹配其他行的行首 # 使用\Z print("\Z in slnle line:",re.findall("python\Z", str)) # 默认单行模式,执照字符串的行首匹配,找不到匹配项 ...
Find the maximum frequency character in the string We will take the string as input from the user and then find the maximum frequency character in the string. Example Input: pythonprogramminglanguage Output: g To find the most frequent character in the string, we will count the frequency of ...