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Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 36782    Accepted Submission(s): 
20003
import java.util.*;
class Main{
public static void main(String args[])
{Scanner cin=new Scanner(System.in);
  int n=cin.nextInt();
  cin.nextLine();
  while(n-->0)
  {String str=cin.nextLine();
  byte []s=str.getBytes();
  int sum=0;
  for(int i=0;i<s.length;i++)
  {if(s[i]<0)
    sum++;}
    System.out.println(sum/2);
    }
  }
}
汉字的机内码是个负数,但汉字的机内码占两个字节,所以统计汉字的时候要除以2;  
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原文地址:http://www.cnblogs.com/1314wamm/p/5372424.html