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-(NSUInteger) unicodeLengthOfString: (NSString *) text {
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;
}
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原文地址:http://www.cnblogs.com/dexjay/p/4823619.html