今天在写代码的时候遇到了点问题,特意记下,以免忘记!四舍五入方法: // num为传入的值,n为保留的小数位 function fomatFloat(num,n){ var f = parseFloat(num); if(isNaN(f)){ return false; } f = Math.round(num*Math.pow(10, n))/Math.pow(10, n); // n 幂 var s = f.toString(); var rs = s.indexOf('.'); //判定如…
plainText=input('message:') for c in plainText: print(chr(ord(c)-3),end='') plainText=input('message:') for c in plainText: print(chr(ord(c)+3),end='') for i in range(12): print(9800+i,chr(9800+i))…
在Python中使用 "\uxxxx".decode("unicode_escape") 1. class Helper_Tool { public static function unicodeDecode($data) { function replace_unicode_escape_sequence($match) { return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE');…