-(NSUInteger) unicodeLengthOfString: (NSString *) text//汉字长度 2个英文字母＝1个汉字
{
NSUInteger asciiLength = 0;
for (NSUInteger i = 0; i < text.length; i++)
{
unichar uc = [text characterAtIndex: i];
asciiLength += isascii(uc) ? 1 : 2;
}
NSUInteger unicodeLength = asciiLength / 2;
if(asciiLength % 2)
{
unicodeLength++;
}
return unicodeLength;
}
-(NSUInteger) asciiLengthOfString: (NSString *) text//一个汉字2字节
{
NSUInteger asciiLength = 0;
for (NSUInteger i = 0; i < text.length; i++)
{
unichar uc = [text characterAtIndex: i];
asciiLength += isascii(uc) ? 1 : 2;
}
return asciiLength;
}