Method isNumber

APIJSONORM/src/main/java/apijson/StringUtil.java:565–572

判断是否全是数字 @param s @return

(String s)

	 * @return
	 */
	public static boolean isNumber(String s) {
		if (isEmpty(s, true)) {
			return false;
		}

		current = s;
		return PATTERN_NUMBER.matcher(s).matches();
	}
	/**判断是否全是字母
	 * @param s
	 * @return