public static Boolean isEnOrCn(String str) {
		Boolean result = true;
		for (int i = 0; i < str.length(); i++) {
			char ch = str.charAt(i);
			Boolean isEn = CharUtil.isEnChar(ch);
			Boolean isCn = CharUtil.isChineseChar(ch);
			Boolean isBlank = CharUtil.isBlankChar(ch);

			if ((isEn || isCn || isBlank) == false) {
				result = false;
				break;
			}
		}
		return result;
	}