中新网报道消息显示,有欧洲科学开发者_开发技巧家研究发现每天至少走4000步能有效降低早逝的风险,且每天走的步数越大,最终影响也会越大。这一研究结合了日本、澳大利也和挪威等地研究成果,在上述国家,有研究人员
I have some BigDecimal values which should be indexed for searching. Lucene has NumericField but it has setters only for long, double, float and int. I could store it as a 开发者_如何学PythonString bu