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源代码:
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>素材8网教程(study.sucai8.cn)</title> </head> <body> <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> </body> </html>
运行结果