yamin_tang
Results
2
comments of
yamin_tang
第二条中 console,log(typeof a); //undefined,但是应该为number吧? 运行出来的结果也是这样 (function(){ var a = b = 3; })(); console.log(typeof a) console.log("a defined? " + (typeof a !== 'undefined')); // true console.log("b defined? " + (typeof...
你好,来信我已收到,会尽快跟你联系。