1.
var f = function g() {
return 23;
};
typeof g();
error; 运行f()为23;
2.
(function (x) {
delete x;
return x;
})(1);
1; 了解delete用法?????
3.
(function f(f) {
return typeof f();
})(function () {
return 1;
});
“number” ?????
原文:http://www.cnblogs.com/lixuemin/p/5630977.html