昵称只能输入中文英文数字

很简单，不多说，直接上代码

public static Boolean nicknameDetermine(String nickname) {Boolean flag = true;String reg1 = "[\\u4e00-\\u9fa5]";String reg2 = "[a-zA-Z]";String reg3 = "[0-9]";char[] charArray = nickname.toCharArray();for (char c : charArray) {String str = String.valueOf(c);if(!str.matches(reg1) && !str.matches(reg2) && !str.matches(reg3)) {flag = false;break;}}return flag;}