Assignment of a [to] character array

Reference Original address: http://blog.chinaunix.net/uid-26404201-id-3212247.html

Defines an array of char a[10];

How do I assign a value to this array? 1, the definition of the time directly with a string assignmentchar a[10]= "Hello";Note: You cannot define and assign a value to it first, such as Char a[10]; a[10]= "Hello"; this is wrong! Char a[10]; a[]= "Hello"; it's also wrong! 2. Assigning characters in an array to a valueChar a[10]={' h ', ' e ', ' l ', ' l ', ' o '};3. Using strcpyChar a[10]; strcpy (A, "Hello");error-prone situation:1, Char a[10]; a[10]= "Hello";//How can a character hold a string? Moreover a[10] also does not exist! 2, Char a[10]; a= "Hello";//This situation is easy to appear, a although a pointer, but it already points to the 10-character space allocated in the stack, now this case a again point to the hello constant in the data area, where pointer A is chaotic, not allowed! Main ()
{
Char s[30];
strcpy (S, "good news!"); /* Assign a string to the array */.
}
At compile time, when the program encounters Char S[30] This statement, the compiler leaves a contiguous 30-byte area somewhere in memory and assigns the address of the first byte to S. When a strcpy (strcpy is a function of the turbo C2.0) is encountered, a "good news!/0" string is first created somewhere in the destination file. where/0 means the string is terminated, the Terminator is automatically added at compile time, and a character Fu is copied to the memory area referred to by S. Therefore, when defining a string array, the number of elements should be at least 1 more than the length of the string.

Assignment of a [to] character array