点击运行
<!DOCTYPE html> <html> <body> <p>切勿将字符串创建为对象。</p> <p>JavaScript 无法比较对象。</p> <p id="demo"></p> <script> var x = new String("Bill"); var y = new String("Bill"); document.getElementById("demo").innerHTML = x==y; </script> </body> </html>
运行结果
