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<!DOCTYPE html> <html> <body> <h2>JavaScript</h2> <p>JavaScript 从左到右计算表达式。 不同的序列会产生不同的结果：</p> <p id="demo"></p> <script> var x = 16 + 4 + "Volvo"; document.getElementById("demo").innerHTML = x; </script> </body> </html>