Pattern p = Pattern.compile("\\d+");
Matcher m = p.matcher("afa123");
boolean m.find() 任意位置匹配
boolean m.matches() 整个字符串匹配
boolean m.lookingAt() 字符串开头匹配
Pattern p = Pattern.compile("\\d+");
Matcher m = p.matcher("afa123");
boolean m.find() 任意位置匹配
boolean m.matches() 整个字符串匹配
boolean m.lookingAt() 字符串开头匹配