{"id":1168,"date":"2023-03-28T15:25:34","date_gmt":"2023-03-28T15:25:34","guid":{"rendered":"http:\/\/www.recologypower.com:9080\/?p=1168"},"modified":"2023-03-28T15:26:34","modified_gmt":"2023-03-28T15:26:34","slug":"%e3%80%90javascript%e3%80%9116%e4%bd%8d%e6%9c%89%e7%ac%a6%e5%90%88%e6%95%b4%e6%95%b0%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"http:\/\/www.recologypower.com:9080\/?p=1168","title":{"rendered":"\u3010JavaScript\u301116\u4f4d\u6709\u7b26\u5408\u6574\u6570\u5904\u7406"},"content":{"rendered":"\n<p>1\u3001\u7406\u89e3JavaScript\u5bf9\u6570\u636e\u7684\u9ed8\u8ba4\u903b\u8f91<\/p>\n\n\n\n<p>JS \u4e2d\u6240\u6709\u7684\u6570\u5b57\u7c7b\u578b\uff0c\u5b9e\u9645\u5b58\u50a8\u90fd\u662f\u901a\u8fc7 8 \u5b57\u8282 <a rel=\"noreferrer noopener\" href=\"https:\/\/links.jianshu.com\/go?to=http%3A%2F%2Fzh.wikipedia.org%2Fwiki%2F%25E9%259B%2599%25E7%25B2%25BE%25E5%25BA%25A6%25E6%25B5%25AE%25E9%25BB%259E%25E6%2595%25B8\" target=\"_blank\">double \u6d6e\u70b9\u578b<\/a> \u8868\u793a\u7684\u3002\u6d6e\u70b9\u6570\u5e76\u4e0d\u662f\u80fd\u591f\u7cbe\u786e\u8868\u793a\u8303\u56f4\u5185\u7684\u6240\u6709\u6570\u7684\uff0c \u867d\u7136 double \u6d6e\u70b9\u578b\u7684\u8303\u56f4\u770b\u4e0a\u53bb\u5f88\u5927: <code>2.23x10^(-308) ~ 1.79x10^308<\/code>\u3002 \u53ef\u4ee5\u8868\u793a\u7684\u6700\u5927\u6574\u6570\u53ef\u4ee5\u5f88\u5927\uff0c\u4f46\u80fd\u591f\u7cbe\u786e\u8868\u793a\uff0c\u4f7f\u7528\u7b97\u6570\u8fd0\u7b97\u7684\u5e76\u6ca1\u6709\u8fd9\u4e48\u5927\u3002<\/p>\n\n\n\n<p>2\u300116\u4f4d\u6709\u7b26\u53f7\u6574\u6570\u5904\u7406<\/p>\n\n\n\n<p>\u7531\u4e8eJavaScript\u9ed8\u8ba4\u662f\u6309\u716732\u4f4d\u6570\u636e\u5904\u7406\uff0c\u90a3\u4e48\u5bf9\u4e8e16\u4f4d\u6709\u7b26\u5408\u6570\u636e\u5904\u7406\uff0c\u7b26\u53f7\u4f4d\u5728\u7b2c32\u4f4d\uff0c\u8fd9\u4e48\u7406\u89e3\u5c31\u5bf9\u4e86\u30021\u4ee3\u8868\u8d1f\u6570\uff0c0\u4ee3\u8868\u6574\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4e3e\u4f8b\uff1a\nvar value=0xff88\nconsole.log(0xff88 | 0xffff0000)<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<div class=\"slide-text-bg2\">\n<h3>1\u3001\u7406\u89e3JavaScript\u5bf9\u6570\u636e\u7684\u9ed8\u8ba4<\/h3>\n<\/div>\n<div class=\"flex-btn-div\"><a href=\"http:\/\/www.recologypower.com:9080\/?p=1168\" class=\"btn1 flex-btn\">\u9605\u8bfb\u66f4\u591a<\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[134],"tags":[],"_links":{"self":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1168"}],"collection":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1168"}],"version-history":[{"count":2,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1168\/revisions"}],"predecessor-version":[{"id":1170,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1168\/revisions\/1170"}],"wp:attachment":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1168"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}