【单选题】“形式永远服从功能的需要,这是不变的法则”的观点是由( )提出的。
【判断题】整数、小数和字符在计算机内部表示方式相同
【单选题】在javascript中,以下代码执行的结果是: function test1(){ return console.log(1) } function test2(){ return 0 } console.log(test1()); console.log(test2());
【单选题】下列代码的执行结果是: var s = 'aaa_aa_a'; var r1 = /a+/g; var r2 = /a+/y; console.log("one: "+r1.exec(s)) console.log("two: "+r2.exec(s)) console.log("three: "+r1.exec(s)) console.log("four: "+r2.exec(s))
A.
one: aaa two: aaa three: aa four:aa
B.
one: aaa two: aaa three: aa four: null
C.
one: aaa two: aaa three: null four:aa
D.
one: aaa two: aaa three: undefined four:aa
【单选题】在javascript中, 以下代码执行的结果是: function test1() { return console.log(1) //1 } function test2() { return 0 } console.log(test1()); console.log(test2());
【单选题】下面程序的执行结果为? fun1(); function fun1(){ console.log("A"); } var fun1 = function(){ console.log("B"); } function fun2(){ console.log("C"); } var fun2 = function(){ console.log("D"); } fun2();