Tutorial assignment: 1. Compile a function to store a C-type string in reverse order.

// 1. Write a function that stores a C-type string in reverse order.
// (For example, convert the string "ABCDE" to the string "edcba ")
// Liwei_1

// 11/5/2005 Friday

# Include "stdio. H"
Void reversestr (char * s); // declare the String Conversion Function

Int main ()
{
Char STR [80];
Printf ("enter a string for reverse:/N ");
Scanf ("% s", STR );
Reversestr (STR); // call the String Conversion Function
Printf ("New String: % s/n", STR );
Return 0;
}

Void reversestr (char * s) // defines the String Conversion Function
{
Char * P = s, temp;
While (* P)
P ++; // locate the end flag of the string '/0'
P --; // P Pointer Points to the last character
While (S <p) // s points to the string header and P points to the end of the string. When S> = P, all exchanges are complete.
{
Temp = * s;
* S = * P; // * s and * P exchange data
* P = temp;
S ++;
P --;
}
}