清空原文件内容

with open(res_f_cut, 'w') as fw:
    s = '
'.join(['{}
{}'.format(k, ','.join([str(i) for i in d[k][0:children_val_max]])) for k in d])
    #fw.write(s)

  

文件指针

原文地址:https://www.cnblogs.com/rsapaper/p/9060491.html