{"id":294,"title":"sql\u5e38\u7528\u6570\u503c\u8fd0\u7b97\u7b26\u4e0e\u51fd\u6570","good":0,"bad":0,"hit":2494,"created_at":"2018-06-14 22:20:00","content":"<p>\u6570\u503c\u8fd0\u7b97\u7b26\u4e0e\u51fd\u6570<\/p><p>ceil:\u8fdb\u4e00\u53d6\u6574 ceil(3.01)-&gt;4<\/p><p>floor:\u820d\u4e00\u53d6\u6574ceil(3.01)-&gt;3<\/p><p>div:\u6574\u6570\u9664\u6cd5div(3\/4)-&gt;0<\/p><p>power:\u5e42\u8fd0\u7b97power(3,3)-&gt;27<\/p><p>round:4\u820d5\u5165round(2.341,2)-&gt;2.34<\/p><p>truncate:\u6570\u5b57\u622a\u53d6truncate(122.38,1)-&gt;122.3; trumcate(122.38,-1)-&gt;120<\/p><p><br\/><\/p>"}