fn2.num為啥打印的是111，f1中的this經(jīng)過call指向了f2，為啥去打印f1的num？functionfn1(){console.log(1);this.num=111;this.sayHey=function(){console.log("sayhey.");}}functionfn2(){console.log(2);this.num=222;this.sayHello=function(){console.log("sayhello.");}}fn1.call(fn2);console.log(fn2.num);//111
小白，請教各位大佬！求解一道關(guān)于call的題目求解答！
尚方寶劍之說
2019-06-09 10:52:59
