简单教程
提交运行
代码编辑器:
<script> document.write(parseFloat("10") + "<br>"); document.write(parseFloat("10.00") + "<br>"); document.write(parseFloat("10.33") + "<br>"); document.write(parseFloat("34 45 66") + "<br>"); document.write(parseFloat(" 60 ") + "<br>"); document.write(parseFloat("40 years") + "<br>"); document.write(parseFloat("He was 40") + "<br>"); </script>
运行结果: