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我在main函数前面定义了一个全局数组q[100],在线仿真发现这个数组初始值不是0，请问这是怎么回事呢，难道要一个个的赋0吗，写成q[100]={0};也是只有第一个数为0，求解答？
变量在使用之前都要初始化的。
申明的时候赋0，比如int q[100]={0};
