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Town Field Poem:
The Pure Heart sentiment wisdom language, does not have the world name and the benefit. Learn water under the hundred rivers, give up arrogant slow meaning.
Learn to have a small return to feed root, willing to cast a conscience blog. Sincere in this writing experience, willing to see the text to inspire.
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Code
1 <!DOCTYPE HTML>2 <HTML>3 <Head>4 <Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8"/>5 <title></title>6 <Scripttype= "Text/javascript">7 8 //sqrt9 //the square root can only calculate numbers greater than or equal to 0Ten document.write (Math.sqrt (4) + "<br/>"); One document.write (Math.sqrt (2.4) + "<br/>"); A document.write (Math.sqrt (0) + "<br/>"); - document.write (Math.sqrt (-1) + "<br/>");//This should be for I, but ... - the </Script> - </Head> - <Body> - + </Body> - </HTML>
Result
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The essence of the blog, in the technical part, more in the town yard a poem. ide:vs2015; Browser: Firefox.
Html+css+js, strong, worth studying hard. The video tutorial of the Preach Intelligence podcast is my Learning Resource, recommended.
If there are any improvements to the blog post, please leave a comment and I'll think it over.
Note: Because Bo Master realm is not enough, so this article only for testing and reference use, not for other purposes. The terms of use are accepted on your behalf when you refer to the content of your blog.
JavaScript base math.sqrt () square root can only calculate numbers greater than or equal to 0
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