JS案例:parseFloat()和parseInt()函数应用
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<!doctype html> <html> <head> <meta charset="utf-8"> <title>内置函数测试示例</title> </head> <body> <pre> <script type="text/javascript"> var num="123.5"; var num_float=parseFloat(num); var num_int=parseInt(num); document.writeln(num_float); document.writeln(num_int); </script> </pre></body></html>