<!DOCTYPE html> <html> <body> <h1>JavaScript 运算符</h1> <p>在这个例子中,y 在被赋值给 x 之后才被递增了(即后置递增)。</p> <p id="demo1"></p> <p id="demo2"></p> <script> var y = 5; var x = y++; document.getElementById("demo1").innerHTML = y; document.getElementById("demo2").innerHTML = x; </script> </body> </html>