06.关于split函数的应用

做完了初级的爬虫学习,想着做一个独立的小案例,根据名单表去批量查成绩,在分析过程后第一步就卡住了,想了一晚上,如何把名单的姓名和学号分别赋值给变量name和number,没想到这么简单一个问题就卡住了半天。百度了许多资料,最终是第二天睡醒后思路清晰的情况下,找了类似的案例,copy过来才明白原理的。

复述一下过程,split可以把一段str按需求拆分成字符串列表,除非拆分后的结果为1个元素,则不得再拆分。可以再拆分的前提是拆分后每个元素变成几个单元,则提供几个变量值。

这里记录一个不错的案例:


str=”hello boy<[www.doiido.com]>byebye”
print (str.split(‘[‘)[1].split(‘]’)[0].split(‘.’))

还有:

with open(“source.txt”, encoding=“utf-8”) as f:
    for line in f.read().split(\n):
            name, number = line.split(”    “)

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