NSDictionary *attributes = @{NSFontAttributeName:self.font};
CGSize fontSize = [self.text boundingRectWithSize:CGSizeMake(self.frame.size.width, MAXFLOAT) options:NSStringDrawingTruncatesLastVisibleLine attributes:attributes context:nil].size;
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本文标题:IOS根据字符串的长度和文字大小,获取其宽度和高度
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