【填空题】
393、 已知x = [1, 2, 3]，那么连续执行y = [1, 2, 3]和y.append___这两条语句之后，x的值为__________。___
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答案
4|[1, 2, 3]
解析
暂无解析
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【填空题】
428、 已知当前文件夹中有纯英文文本文件readme.txt，请填空完成功能把readme.txt文件中的所有内容复制到dst.txt中，with open___ as src, open___ as dst:dst.write___)。___
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