[c++]new运算符并不确保会自动初始化

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new运算符

new运算符会在堆上申请一段内存空间，一般的变量是在栈上的。

new出来的变量只要不delete释放，在其他函数等任意位置都可以使用，

new会返回这段内存空间的首地址。

new并不确保会自动初始化

测试

结论

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