Canva AI：智能设计平台

class CanvaAIDesignWorkflow:    """Canva AI设计工作流演示"""        def __init__(self, brand_colors=None, brand_font="Arial"):        self.brand_colors = brand_colors or ["#FF6B6B", "#4ECDC4", "#45B7D1"]        self.brand_font = brand_font        self.elements = []        def add_text(self, content, style="body"):        """添加文本元素，AI自动调整排版"""        sizes = {"title": 36, "subtitle": 24, "body": 14, "caption": 10}        element = {            "type": "text",            "content": content,            "font_size": sizes.get(style, 14),            "font": self.brand_font,            "color": self.brand_colors[0]        }        self.elements.append(element)        return self        def add_image_prompt(self, prompt, style="photo"):        """AI文本生成图像"""        element = {            "type": "ai_image",            "prompt": prompt,            "style": style,            "candidates": 4        }        self.elements.append(element)        return self        def auto_layout(self):        """AI自动排版"""        canvas_width, canvas_height = 1080, 1080        text_elements = [e for e in self.elements if e["type"] == "text"]        image_elements = [e for e in self.elements if e["type"] == "ai_image"]                # 图片占上半部分        y_offset = 50        for img in image_elements:            img["position"] = {"x": 50, "y": y_offset, "w": 980, "h": 500}            y_offset += 520                # 文字自动排列        for txt in text_elements:            txt["position"] = {"x": 50, "y": y_offset, "w": 980}            y_offset += txt["font_size"] + 20                return self        def magic_resize(self, target_sizes):        """AI自动尺寸适配"""        resized_versions = []        for name, (w, h) in target_sizes.items():            version = {                "name": name,                "width": w,                "height": h,                "elements": []            }            scale = min(w / 1080, h / 1080)            for elem in self.elements:                new_elem = dict(elem)                if "position" in new_elem:                    pos = new_elem["position"]                    new_elem["position"] = {                        "x": int(pos.get("x", 0) * scale),                        "y": int(pos.get("y", 0) * scale),                        "w": int(pos.get("w", 0) * scale),                        "h": int(pos.get("h", 0) * scale)                    }                if "font_size" in new_elem:                    new_elem["font_size"] = max(8, int(new_elem["font_size"] * scale))                version["elements"].append(new_elem)            resized_versions.append(version)        return resized_versions        def export(self, format_type="png"):        """导出设计"""        return {"format": format_type, "elements": len(self.elements), "status": "ready"} # 使用示例workflow = CanvaAIDesignWorkflow(    brand_colors=["#1a73e8", "#34a853", "#fbbc04"],    brand_font="Noto Sans SC") workflow.add_text("618大促", style="title")workflow.add_text("全场5折起", style="subtitle")workflow.add_image_prompt("红色促销海报背景，节日氛围", style="photo")workflow.auto_layout() # 一键适配多平台versions = workflow.magic_resize({    "wechat_cover": (900, 383),    "weibo_post": (900, 900),    "douyin_cover": (1080, 1920)}) for v in versions:    print(f"{v['name']}: {v['width']}x{v['height']}, {len(v['elements'])}个元素")