javascript:for(var a=document.getElementsByTagName("td"),b=0,c=0,d={"\u53ef":2,"\u826f":3,"\u512a":4,"\u79c0":5},e=/^[\u53ef\u826f\u512a\u79c0]$/,f=0;f<a.length-1;f++)if(e.test(a[f+1].textContent)){var g=Number(a[f].textContent),b=b+g*d[a[f+1].textContent],c=c+g;console.log(a[f-3].textContent,g,a[f+1].textContent)}alert("GPA: "+b/c);