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数据:
x y timestamp 123 123 1000165 123 123 1000167 123 123 1000160 123 123 1000168 123 123 1000154 123 123 1000132 123 123 1000112
如何从时间戳间隔 [time1;time2] 获取数据?
尝试
db.foo.find({ $and: [ {"timestamp" : { $lte: 1000112}}, {"timestamp" : { $gte: 1000165}} ] })
我在<a>带有背景图像的标签上使用了特殊的链接效果:CSS。链接看起来不错,但该网站还包含很多<img>链接,这些链接也获得了 CSS。
<a>
<img>
我目前正在用 jQuery 解决这个问题:$("img").parent().css("background", "
$("img").parent().css("background", "