iOS混排计算中英文个数，中午算一个字符，英文和符号算半个字符

-(int)convertToInt:(NSString*)strtemp {

int strlength = 0;

char* p = (char*)[strtemp cStringUsingEncoding:NSUnicodeStringEncoding];

for (int i=0 ; i<[strtemp lengthOfBytesUsingEncoding:NSUnicodeStringEncoding] ;i++) {

    if (*p) {

        p++;

        strlength++;

    }

    else {

        p++;

    }

}

 return (strlength+1)/2;


}</pre>