01: #include <stdio.h>
02:
03: int length(char str[]);
04:
05: int main(void)
06: {
07: char str[20];
08: int num;
09: printf("Input: ");
10: scanf("%s", str);
11: num = length(str);
12: printf("length: %d\n", num);
13: return 0;
14: }
15:
16: int length(char str[])
17: {
18: int i;
19:
20: for(i = 0;str[i] != '\0';i++)
21: {
22: }
23: return i;
24: }