Python中使用.format()自定义变量

在爬取中,如果链接是有规则的增加+1。使用.format()非常方便

for i in range(1,10):
    num = i
    url = "https://cchheenn.com/index.php?chaps={}".format(num);  # 需要请求的网址
    print(url)

输出结果为

https://cchheenn.com/index.php?chaps=1
https://cchheenn.com/index.php?chaps=2
https://cchheenn.com/index.php?chaps=3
https://cchheenn.com/index.php?chaps=4
https://cchheenn.com/index.php?chaps=5
https://cchheenn.com/index.php?chaps=6
https://cchheenn.com/index.php?chaps=7
https://cchheenn.com/index.php?chaps=8
https://cchheenn.com/index.php?chaps=9

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