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1. º¯ÊýÔÚÖ´ÐÐÍê return Ö¸Áîºó¾Í»áÍ£Ö¹Ö´ÐдúÂë.
function test(Num1,Num2){
return Num1+Num2;
alert(Num1+Num2); //never outputs
}
2. javascript º¯Êý²»ÄÜÖØÔØ,Ò²¾ÍÊÇ˵¿ÉÒÔÔÚͬһ¸ö×÷ÓÃÓòÖж¨Òå¶à¸öͬÃûº¯Êý,¶ø×îÖÕÖ´ÐеÄÊǺóÒ»¸öº¯Êý.
function test(num){
alert(num+10);
}
function ......
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eval('var aa = 5');
alert(aa); // ->5
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var yy = "{a:'aa',b:'bb'}";
yy = eval('(' + yy + ')');
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