(column 22) typical column questions of C language: delete the specified letters in the string.

give the result as follows ：

 

---

The code analysis ：

#include<stdio.h>

int main()
{
	char x,f;
	printf(" Please enter the letter you want to delete ：");
	scanf("%c",&x);

	getchar(); // Enter after the previous input , Need to use getchar Get rid of .

	printf(" Please enter the string ：");
	while((f=getchar())!='\n') // utilize getchar Make cyclic input 
	{

		if(f==x) // If there is a letter to be deleted 
        {
			continue;  // Skip it 
		}

		else
		putchar(f); // If it is not the letter to be deleted , Then print 
	}
	printf("\n");
	return 0;
}

---

Clean code ： 

#include<stdio.h>
int main()
{
	char x,f;
	printf(" Please enter the letter you want to delete ：");
	scanf("%c",&x);
	getchar();

	printf(" Please enter the string ：");
	while((f=getchar())!='\n')
	{
		if(f==x)
        {
			continue;
		}

		else
		putchar(f); 
	}
	printf("\n");
	return 0;
}