/** |
* |
* TODO 方法作用:生成N位验证码 |
* @return |
* @Author: 刘泽中 |
* @Date: 2015-8-27 上午11:59:56 |
*/ |
public String buildRandN( int N) { |
String rand = "" ; |
for ( int i = 0 ; i < N; i++) { |
int ran = ( int ) (Math.random() * 10 ); |
String random = String.valueOf(ran); |
rand += random; |
} |
return rand; |
} |