{"id":779,"date":"2021-08-19T17:13:16","date_gmt":"2021-08-19T09:13:16","guid":{"rendered":"http:\/\/blog.xrhoujie.com\/?p=779"},"modified":"2021-08-19T17:13:16","modified_gmt":"2021-08-19T09:13:16","slug":"javascript-x-%e7%9a%84%e5%b9%b3%e6%96%b9%e6%a0%b9%e6%af%8f%e6%97%a5%e4%b8%80%e9%a2%98","status":"publish","type":"post","link":"http:\/\/blog.xrhoujie.com\/?p=779","title":{"rendered":"JavaScript x \u7684\u5e73\u65b9\u6839(\u6bcf\u65e5\u4e00\u9898)"},"content":{"rendered":"<p>\u5b9e\u73b0\u00a0int sqrt(int x)\u00a0\u51fd\u6570\u3002<\/p>\n<p>\u8ba1\u7b97\u5e76\u8fd4\u56de\u00a0x\u00a0\u7684\u5e73\u65b9\u6839\uff0c\u5176\u4e2d\u00a0x \u662f\u975e\u8d1f\u6574\u6570\u3002<\/p>\n<p>\u7531\u4e8e\u8fd4\u56de\u7c7b\u578b\u662f\u6574\u6570\uff0c\u7ed3\u679c\u53ea\u4fdd\u7559\u6574\u6570\u7684\u90e8\u5206\uff0c\u5c0f\u6570\u90e8\u5206\u5c06\u88ab\u820d\u53bb\u3002<\/p>\n<p>\u793a\u4f8b 1:<\/p>\n<p>\u8f93\u5165: 4<br \/>\n\u8f93\u51fa: 2<br \/>\n\u793a\u4f8b 2:<\/p>\n<p>\u8f93\u5165: 8<br \/>\n\u8f93\u51fa: 2<br \/>\n\u8bf4\u660e: 8 \u7684\u5e73\u65b9\u6839\u662f 2.82842&#8230;,<br \/>\n\u7531\u4e8e\u8fd4\u56de\u7c7b\u578b\u662f\u6574\u6570\uff0c\u5c0f\u6570\u90e8\u5206\u5c06\u88ab\u820d\u53bb\u3002<\/p>\n<div>\n<div>\/**<\/div>\n<div>* @param {number} x<\/div>\n<div>* @return {number}<\/div>\n<div>*\/<\/div>\n<div>var mySqrt = function(x) {<\/div>\n<div>if(x === 0) {<\/div>\n<div>return0<\/div>\n<div>}<\/div>\n<div>return Math.floor(sqrt(x)(x))<\/div>\n<div>};<\/div>\n<div>function sqrt(x) {<\/div>\n<div>let origin = x;<\/div>\n<div>return function inner(x) {<\/div>\n<div>let xn1 = x &#8211; (x*x-origin) \/ (2*x)<\/div>\n<div>if(x &#8211; xn1 &lt;= 0.1) { \/\/ \u7cbe\u5ea6\u95ee\u9898<\/div>\n<div>return xn1<\/div>\n<div>}<\/div>\n<div>return inner(xn1)<\/div>\n<div>}<\/div>\n<div>}<\/div>\n<p><img loading=\"lazy\" class=\"alignnone size-large wp-image-780\" src=\"http:\/\/blog.xrhoujie.com\/wp-content\/uploads\/2021\/08\/111-2-1024x456.png\" alt=\"\" width=\"660\" height=\"294\" srcset=\"http:\/\/blog.xrhoujie.com\/wp-content\/uploads\/2021\/08\/111-2-1024x456.png 1024w, http:\/\/blog.xrhoujie.com\/wp-content\/uploads\/2021\/08\/111-2-300x134.png 300w, http:\/\/blog.xrhoujie.com\/wp-content\/uploads\/2021\/08\/111-2-768x342.png 768w, http:\/\/blog.xrhoujie.com\/wp-content\/uploads\/2021\/08\/111-2.png 1888w\" sizes=\"(max-width: 660px) 100vw, 660px\" \/><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9e\u73b0\u00a0int sqrt(int x)\u00a0\u51fd\u6570\u3002 \u8ba1\u7b97\u5e76\u8fd4\u56de\u00a0x\u00a0\u7684\u5e73\u65b9\u6839\uff0c\u5176\u4e2d\u00a0x \u662f\u975e\u8d1f\u6574\u6570\u3002 \u7531\u4e8e\u8fd4\u56de\u7c7b\u578b\u662f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":180,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[19],"_links":{"self":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/779"}],"collection":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=779"}],"version-history":[{"count":1,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/779\/revisions"}],"predecessor-version":[{"id":781,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/posts\/779\/revisions\/781"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=\/wp\/v2\/media\/180"}],"wp:attachment":[{"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=779"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.xrhoujie.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}