替换换行符的函数\n删除以\n或-开头的标记行

def replaceNewline(text, replacement):
    return text.replace('\n', replacement)

text = "Hello\nWorld\n"
replacement = " "
result = replaceNewline(text, replacement)
print(result)  # 输出：Hello World

def removeMarkedLines(text):
    lines = text.split('\n')
    filtered_lines = [line for line in lines if not line.startswith('\n') and not line.startswith('-')]
    return '\n'.join(filtered_lines)

text = "- This is a marked line\nHello\n- World\n"
result = removeMarkedLines(text)
print(result)  # 输出：Hello