rhino

摘要： 1用JAVA自带的函数public static boolean isNumeric(String str){ for (int i = str.length();--i>=0;){ if (!Character.isDigit(str.charAt(i))){ return false; } } return true; }2用正则表达式public static boolean isNumeric(String str){ Pattern pattern = Pattern.compile("[0-9]*"); return pattern.mat... 阅读全文