我写了这样一条语句：

char day[8]={'Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'};

然后一大堆报错，每一条各七次（相当于每个元素一次）：

[Warning] character constant too long for its type

[Warning] overflow in implicit constant conversion [-Woverflow]

就连主函数都报错：

In function 'int main()':