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並前往https://www.codesdope.com/discussion/why-are-you-using-a-space-before-c-in-scanf-c-ch/

Why are you using a space before %c in scanf(" %c", &ch) ?

The program is not working if we don't add space before char. ... So, this will work without space printf("\nEnter value of char\n"); scanf("%c", ...

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