Google搜索技巧几种：
❶ 双引号：搜索精确字串匹配。示例："精确字串匹配"
❷ 减号：去除带有某些匹配的搜索结果。示例：海豚 -海豚湾
❸ 波浪号：模糊搜索。示例：音乐 ~网课
❹ site关键词：搜索特定网站内的结果。示例：音乐 site:tumblr.com
❺ 竖号：搜索匹配A或匹配B的结果。示例：海豚 | 海豹
❻ 两个点：搜索数字范围的匹配。示例：电影 1980..2000
❼ filetype关键词：搜索特定文件类型。示例：拜登 filetype:pdf source
BY 程序员之家
A spike in interest rates since the start of the year has accelerated a rotation out of high-growth technology stocks and into value stocks poised to benefit from a reopening of the economy. The Nasdaq has fallen more than 10% over the past month as the Dow has soared to record highs, with a spike in the 10-year US Treasury yield acting as the main catalyst. It recently surged to a cycle high of more than 1.60% after starting the year below 1%. But according to Jim Paulsen, the Leuthold Group's chief investment strategist, rising interest rates do not represent a long-term threat to the stock market. Paulsen expects the 10-year yield to cross 2% by the end of the year. A spike in interest rates and its impact on the stock market depends on the economic backdrop, according to Paulsen. Rising interest rates amid a strengthening economy "may prove no challenge at all for stocks," Paulsen said.
n the U.S. people generally use Bitcoin as an alternative investment, helping diversify a portfolio apart from stocks and bonds. You can also use Bitcoin to make purchases, but the number of vendors that accept the cryptocurrency is still limited. Big companies that accept Bitcoin include Overstock, AT&T and Twitch. You may also find that some small local retailers or certain websites take Bitcoin, but you’ll have to do some digging. That said, PayPal has announced that it will enable cryptocurrency as a funding source for purchases this year, financing purchases by automatically converting crypto holdings to fiat currency for users. “They have 346 million users and they’re connected to 26 million merchants,” says Spencer Montgomery, founder of Uinta Crypto Consulting. “It’s huge.”
【程序员之家】软件项目百例 from vn