利用NSAttributeString进行图文混编

    NSString* showText = [NSString stringWithFormat:@"%@%@",text1,text2];
    NSRange range1 = [showText rangeOfString:text1];
    NSRange range2 = [showText rangeOfString:text2];

    NSDictionary* attributes1 = @{
                                 NSFontAttributeName: font,
                                 NSForegroundColorAttributeName:dColor
                                 };
    NSDictionary* attributes2 = @{
                                 NSFontAttributeName: font,
                                 NSForegroundColorAttributeName:cColor
                                 };
    NSMutableAttributedString* attributeString = [[[NSMutableAttributedString alloc] initWithString:showText]
    autorelease];
    [attributeString addAttributes:attributes1 range:range1];
    [attributeString addAttributes:attributes2 range:range2];

    NSTextAttachment* textAttachment = [[[NSTextAttachment alloc] init] autorelease];
    textAttachment.image = image;
    textAttachment.bounds = CGRectMake(0, -4, 16, 16);  // 微调图片位置

    NSAttributedString* imageAttachment = [NSAttributedString attributedStringWithAttachment:textAttachment];
    [attributeString insertAttributedString:imageAttachment atIndex:range1.length]; // 插入图片

    label.attributedText = attributeString;