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我想创建一个如下所示的2D数组.

char **dog = new char[480][640];

但它错误:

error C2440: 'initializing' : cannot convert from 'char (*)[640]' to 'char ** '
        Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

使用"新"我需要做什么？(不使用calloc,malloc或char dog[480][640];)