今日分享 · 文本分割(Key)工具：Python3用途：本期分享如何提取关键词所在行。注意：测试环境为Python 3.6.6示例：f = open('./filename','r')w = open('./filename_','w')lines = f.readlines()for line in lines: if 'key' in line: #匹配关键词     w.write(line)