用大学python的水平帮我定义一个ReadFile函数，实现文本文件的读取

def ReadFile(filename):
"""
This function reads the contents of a text file and returns them as a string.

Parameters:
filename (str): The filename (including the path if it is not in the current directory) of the file to be read.

Returns:
A string containing the contents of the file.
"""
with open(filename, 'r') as f:
file_contents = f.read()
return file_contents

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用python帮我定义一个ReadFile函数，实现文本文件的读取

def ReadFile(filename):
with open(filename, 'r') as f:
content = f.read()
return content

帮我定义一个ReadFile函数，实现文本文件的读取

以下为一个Python的ReadFile函数示例，实现了文本文件读取：

def ReadFile(file_path):
    try:
        with open(file_path, 'r') as f:
            content = f.read()
        return content
    except FileNotFoundError:
        print("File Not Found: " + file_path)

函数接受一个参数`file_path`表示待读取文本文件的路径，返回读取的文件内容。函数通过`open()`函数打开文件，采用'r'模式读取文件内容，并使用`with`语句自动关闭文件流。如果文件不存在，则抛出`FileNotFoundError`提示未找到文件。