This article lets you know how to delete specific lines from a file in Python. For example, you want to delete lines #5 and #12. After reading this article, you’ll learn: How to remove specific lines from a file by line numbers How to delete lines that match or contain the given ...
defdelete_line_from_file(filename,line_to_delete):# 读取文件内容withopen(filename,'r')asfile:lines=file.readlines()# 删除指定行withopen(filename,'w')asfile:forlineinlines:ifline.strip("\n")!=line_to_delete:file.write(line)# 使用示例delete_line_from_file('grades.txt','David, 60') ...
defdelete_content_from_file(file_path,content_to_delete):try:# 读取文件内容withopen(file_path,'r')asfile:lines=file.readlines()# 删除特定内容的行new_lines=[lineforlineinlinesifcontent_to_deletenotinline]# 重新写入文件withopen(file_path,'w')asfile:file.writelines(new_lines)print(f"成功删除...
在win下创建多个.txt文件，参考下面的代码for i in range(1000):i_str = str(i+1)file_name = ...
The file is then truncated with the help of thetruncate()method. All the lines from the file are then written to a list with the exception of the first line. This is made possible with the help of list slicing. Delete a Line That Matches a Given Particular Text ...
def delete_paragraph(paragraph): p = paragraph..._element = None3、插入图片和paragraph行高设置由于默认的行高限制,我的使用中遇到了麻烦,插入的图片的时候,图片部分只能显示一部分。...后来,找到了一个办法设置行高属性: from docx.enum.text import WD_LINE_SPACING paragraph.paragraph_format.line_spacing_...
= False: raise Exception("This is a soft link file. Please chack.") with open(file_path, 'r', encoding='utf-8') as fhdl: fhdl.seek(0) lines_info = fhdl.readlines() for line in lines_info: if line.startswith('TIME_SN='): sn_value = line[8:-1] elif line.startswith('...
font=("Arial", 20))text.pack(padx=10, pady=10)root.mainloop()使用多行文本框显示文字要在多行文本框显示文字，可以使用 insert() 方法。此方法在指定的索引位置插入字符串。语法格式：text.insert(index, string)示例：import tkinter as tkroot = tk.Tk()root.geometry('600x400+200+200')root....
这可能是最简单的例子:当late被传递给if语句时,late充当条件表达式,在布尔上下文中进行评估(就像我们调用bool(late)一样)。如果评估的结果是True,那么我们就进入if语句后面的代码体。请注意,print指令是缩进的:这意味着它属于由if子句定义的作用域。执行这段代码会产生: ...
在本节中,我们将看到维基百科上興舞形式列表的一个示例。我们将列出所有古典印度舞蹈。为此,请创建一个extract_from_wikipedia.py脚本,并在其中编写以下内容: importrequestsfrombs4importBeautifulSoup page_result = requests.get('https://en.wikipedia.org/wiki/Portal:History') parse_obj = BeautifulSoup(page_re...