中文字符长度判断

中文字符长度判断

javascript 中文字符长度判断

if (srt.charCodeAt(i)  >   255 )  {
//if(friendnick.charCodeAt(i) < 0x4E00 || friendnick.charCodeAt(i) > 0x9FA5) {
     charlen +=2;
    } else {
    
     charlen +=1;
    }

java 中文字符长度判断

  if (tempProperty.getBytes().length  >  cut * 2  ) {
                if (tempProperty.length() >= (cut + 1)) {
                    byte [] src = tempProperty.getBytes();
                    byte [] dest = new byte[cut*2+2];
                    int flag = 0;
                    for(int j=0;j<src.length;j++){  
                        if(j<= cut*2){
                           // System.out.println(j);
                            if(src[j]<0)
                                flag++;
                            dest[j]= src[j];
                        }
                    }
                  
                    if(flag % 2 !=0){
                        dest[cut*2]= 0;
                    }
                    tempProperty =  new String(dest).trim()+ ""; 

这个代码有问题  "sss顺磾村厈士大夫"  tempProperty.getBytes() 其中一个数字不为负数
  修改过的代码

 String s  =   " stss顺磾村厈士大夫 " ;
        String badChar  = " ABCDEFGHIJKLMNOPQRSTUVWXYZ " ; 
        badChar  +=   " abcdefghijklmnopqrstuvwxyz " ; 
        badChar  +=   " 0123456789 " ; 
        badChar  +=   "   " + " 　 " ; // 半角与全角空格 
        badChar  +=   " .`~!@#$%^&()-_=+]\\|:;\ " \ ' <,>?/*";
        String result  =   "" ;
         int  len  =   0 ;
             for ( int  i = 0 ;i < s.length();i ++ ) { 
                char c = s.charAt(i);
                if(badChar.indexOf(c)==-1){//如果是中文
                   result = result+c;
                   len += 2;
                }else{
                   result =  result+c;
                   len += 1;
                }
                if(len>=15) break;
            }