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JavaScript 数值
tryjs_numbers_inaccurate3
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<!DOCTYPE html> <html> <body> <h2>JavaScript 数字</h2> <p>浮点运算并不总是 100% 准确：</p> <p id="demo1"></p> <p>但它有助于乘法和除法：</p> <p id="demo2"></p> <script> var x = 0.2 + 0.1; document.getElementById("demo1").innerHTML = "0.2 + 0.1 = " + x; var y = (0.2*10 + 0.1*10) / 10; document.getElementById("demo2").innerHTML = "0.2 + 0.1 = " + y; </script> </body> </html>