实现函数: function isCharsInBag (s, bag) { var i,c; for (i = 0; i < s.length; i++) { c = s.charAt(i);//字符串s中的字符 if (bag.indexOf(c) > -1) return c; } return ""; } 检查函数: function ischinese(s) { var errorChar; var badChar = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789><,[]{}?/+=|//'/":;~!#$%()`"; errorChar = isCharsInBag( s, badChar) if (errorChar != "" ) { report=report+"请重新输入中文/n"; return false; }
