<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>Money Growing.</title> </head> <body> <script type="text/javascript"> var tax = 0.05; var money = 1000; var year; for(year=1; money<1000; year++) { money += money*tax; alert(money); } year--; document.write(year+" years , you got "+money); </script> </body> </html>
原文：https://www.cnblogs.com/tianxiaxuange/p/9678046.html