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摘要： 1.Node Exports const sum=(x,y)=>x+y; const square=x=>x*x; const mean=data=>data.reduce(sum)/data.length; const stddev=d=>{ let m=mean(d); return Math. 阅读全文

摘要： Icons can easily be added to your HTML page, by using an icon library. How To Add Icons The simplest way to add an icon to your HTML page, is with an 阅读全文