def remove_js_css (content): """ remove the the javascript and the stylesheet and the comment content (<script>....</script> and <style>....</style> <!-- xxx -->) """ r = re.compile(r'''<scrip
昨天向数据库中导入Excel数据时 由于空行 总是报错!下面附上两种去除空行的方法! 方法一.某行某列值为空时 DataView dv = dt.DefaultView; dv.RowFilter = "F1<>'' or F1 is not null";//F1为列名 System.Data.DataTable dt = dv.ToTable(); 方法二.整行为空时 protected voi
# 写方法1 f = open('tmp.txt','w') f.write('hello world') f.close() # 写方法2 with open('tmp.txt','w') as f: f.write('hello \n word') # 读 with open('tmp.txt', 'r') as f: print(f.read()) # 逐行读 with open('tmp.txt','r') as f: for line in f.readlines(): print(l