Comparison of array and vector in C ++

1: When an array is defined, the number of elements in the array must be defined, while that of the vector is not required. It can only contain constants of the nominal value of an integer, enumerated constants, or integer const objects initialized using a constant expression, non-const variables and the const variables whose values need to be known in the running stage cannot be used to define the dimension of the array. 2: The space defined by array is fixed and cannot be changed. The vector is much more flexible and can be added or subtracted. 3: vector has a series of function operations, which are very convenient to use. unlike vector, the array does not provide push-back or other operations to add new elements to the array. New elements cannot be added once defined. If necessary, a new memory space must be allocated, then, assign the element of the member array to the new memory space.

4. arrays are different from vectors. An array cannot be initialized with another array or assigned to another array;