让我们来分解一下：<start_function_call — 函数调用开始，call: — 前缀，change_background_color — 函数名，{color:<escapered<escape} — 带转义标记的参数，<end_function_call — 函数调用结束。
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。51吃瓜对此有专业解读
Apple's mobile devices are secure enough for NATO. Following extensive testing by the German government, the iPhone and iPad are now considered secure enough for the NATO-restricted classified level.
And yet you can still start with malloc if you wrap your use of it by