var a =1; var b = 2; var add=function(a,b){return a+b ;} ; console.log(add(a+b));出错
var a =1; var b = 2; var add=function(a,b){return a+b ;} ; console.log(add(a+b));
结果是NaN,什么意思,哪里写错了
var a =1; var b = 2; var add=function(a,b){return a+b ;} ; console.log(add(a+b));
结果是NaN,什么意思,哪里写错了
2015-05-24
举报