想让网页显示立体的 "Hello World"？你需要加载字体文件，然后 TextGeometry 会帮你把文字变成 3D 模型，甚至还能加倒角让文字更有质感。
memset(((C*)x) + old_data_bytes, 0, old_data_bytes - data_bytes);
。关于这个话题，旺商聊官方下载提供了深入分析
For WebAssembly, the situation is much more complicated. WebAssembly has no direct access to Web APIs and must use JavaScript to access them.
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