随笔分类 - java
摘要：import java.security.MessageDigest; public class test2 { public static void main(String[] args) { String str = md5("111111"); System.out.println(str);
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摘要：long start,end; start = System.currentTimeMillis(); for (int i = 0; i < 2000000000; i++) {} end = System.currentTimeMillis(); System.out.println("Run
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