1.shell习题171020公布的昨日答案 习题171019 - 打印正方形 #!/bin/bash read -p "please input a number:" sum a=`echo $sum |sed 's/[0-9]//g'` if [ -n "$a" ] then echo "请输入一个纯数字." exit 1 fi for n in `seq $sum` do for m in `seq $sum` do if [ $m -lt
一.文件存储 1. TXT文本存储 例:知乎发现页面,获得数据存成TXT文本 import requests from pyquery import PyQuery as pq url="https://www.zhihu.com/explore" headers={'User-Agent':'ozilla/5.0 (iPhone; CPU iPhone OS 11_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mo