document.write(mystr.substring(6)+ "<br />");
document.write(mystr.substring(0,5));
document.write(mystr.substring(0,5));
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document.write(mystr.split("-")+ "<br />");
document.write(mystr.split("")+ "<br />");
document.write(mystr.split("",3)+ "<br />");
document.write(mystr.split("")+ "<br />");
document.write(mystr.split("",3)+ "<br />");
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document.write(mystr.indexOf("o",mystr.indexOf("o",1)+1)+1);
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document.write(mystr.indexOf("o",mystr.indexOf("o",1)+1));
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<script type="text/javascript">
function app2(x,y)
{ var sum,x,y;
sum = x * y;
return sum;
}
var req1=22,req2=3;
sumq = req1+req2;
function app2(x,y)
{ var sum,x,y;
sum = x * y;
return sum;
}
var req1=22,req2=3;
sumq = req1+req2;
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function add3(x,y,z )
{
sum = x + y +z;
document.write(x+"、"+y+"、"+z+"和:"+sum+"<br/>");
return sum;
}
add3(5,8,3)
document.write (add3(7,1,4))
{
sum = x + y +z;
document.write(x+"、"+y+"、"+z+"和:"+sum+"<br/>");
return sum;
}
add3(5,8,3)
document.write (add3(7,1,4))
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if(mynum[i]<60)
{
continue;
document.write("成绩不及格,不输出!"+"<br>");
}
document.write("成绩:"+mynum[i]+"及格,输出!"+"<br>");
{
continue;
document.write("成绩不及格,不输出!"+"<br>");
}
document.write("成绩:"+mynum[i]+"及格,输出!"+"<br>");
2015-01-11