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Failed to load resource: the server responded with a status of 404 (Not Found) 问题描述: 在nextjs项目里想要引入图片,地址都是对的,但是最后报404错误 解决办法: 1、在项目根目录添加一个static文件夹,在s 阅读全文
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Access to XMLHttpRequest at *** from origin ‘null’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: N 阅读全文
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1、输出数据集的基本信息 ①全部数据集 1 data = pd.read_csv(r"C:\Users\Administrator\Desktop\catering_sale.csv",usecols=[0,1]) 2 3 # num = pd.Series(data,index=[i in ran 阅读全文