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#include<stdio.h> | |
#include <ctype.h> //=> fonctions "toupper" et "tolower" qui convertient en majuscule (uppercase) / minuscule (lowercase) | |
main() | |
{ | |
printf("______________________________________________________\n"); | |
printf("Conversion d'une lettre Majuscule en minuscule\n"); | |
printf("______________________________________________________\n"); | |
char C ; | |
start: | |
printf("\nSaisissez une lettre Majuscule: "); | |
scanf("%c", &C) ; | |
printf("\n______________________________________________________\n"); | |
if (C>='A' && C<='Z') // c majuscule ? | |
{ | |
C = tolower(C) ; // convertir en minuscule avec une fonction | |
printf("\nLe lettre convertie en minuscule est: %c \n", C); | |
} else { | |
printf("\nla lettre saisie n'est pas majuscule.\n"); | |
goto start; | |
} | |
printf("\n______________________________________________________\n"); | |
system("pause"); | |
} |