You can't get the input value directly through (int) a.

The values you enter are assigned to an array of strings one by one, for example, 12.

Where a[0] = 1

a[ 1]= 2； A[2]='\0', where' \0' indicates the end of the string.

This is how it is stored.

You can do this:

# include & ltstdio.h & gt

# include & ltmemory.h & gt

void main()

{

Printf ("Please enter a string: \ n");

char a[ 100]；

memset(a，0， 100)；

scanf("%s "，a)；

for(int I = 0； A [me]! =' \ 0'&me< 100; ++i)

{

printf("%d "，(int)a[I]-48)；

}

}

Memset is used to empty an array of strings.