提取 linStr = linStr.replaceAll("[^a-zA-Z0-9]", ""); 去除 linStr = linStr.replaceAll("[a-zA-Z]", "");
提取
linStr = linStr.replaceAll("[^a-zA-Z0-9]", "");去除
linStr = linStr.replaceAll("[a-zA-Z]", "");
提取
linStr = linStr.replaceAll("[^a-zA-Z0-9]", "");去除
linStr = linStr.replaceAll("[a-zA-Z]", "");