NSString 计算中英文字符长度

//方法一:

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

intstrlength =0;

char* p = (char*)[strtempcStringUsingEncoding:NSUnicodeStringEncoding];

for(inti=0; i < [strtemplengthOfBytesUsingEncoding:NSUnicodeStringEncoding] ;i++) {

if( *p ){

p++;

strlength++;

}else{

p++;

}

}

returnstrlength;

}

//方法二:

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

NSStringEncodingenc =CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);

NSData* da = [strtempdataUsingEncoding:enc];

return(int)[dalength];

}