C Programming Example - Delete Special Characters from a String
Remove characters in the string except letters.
Example
#include<stdio.h>
int main()
{
char line[150];
int i, j;
printf("Enter a string:");
fgets(line, (sizeof line / sizeof line[0]), stdin);
for(i = 0; line[i] != '\0'; ++i)
{
while (!( (line[i] >= 'a' && line[i] <= 'z') || (line[i] >= 'A' && line[i] <= 'Z') || line[i] == '\0') )
{
for(j = i; line[j] != '\0'; ++j)
{
line[j] = line[j+1];
}
line[j] = '\0';
}
}
printf("Output:");
puts(line);
return 0;
}
The output result is:
输入一个字符串: run4#$1oob 输出: exampleother extensions