如何在已保存的html文件中查找字符串被找到的次数？

def count_string_occurrences(file_path, target_string):
    try:
        with open(file_path, 'r') as file:
            html_content = file.read()
            occurrences = html_content.count(target_string)
            print("The target string '{}' was found {} times in the HTML file.".format(target_string, occurrences))
    except FileNotFoundError:
        print("File not found.")

# 调用函数进行测试
count_string_occurrences('path/to/your/html/file.html', 'target_string')