#include<stdio.h> int main() {int length(char *p); int len; char str[20]; printf("input string: "); scanf("%s",str); 1en=length(str); printf("The length of string is %d.\n",len); return 0; } int length(char *p) {int n; n=0; while(*p!=’\0’) {n++; p++; } return(n); }
#include<stdio.h>
int main()
{int length(char *p);
int len;
char str[20];
printf("input string: ");
scanf("%s",str);
1en=length(str);
printf("The length of string is %d.\n",len);
return 0;
}
int length(char *p)
{int n;
n=0;
while(*p!=’\0’)
{n++;
p++;
return(n);
int length(int*str) /*返回字符串个数的函数,函数的类型为int*/ { int n=0,*p1; /*n为计数器*/ p=str; while(*p='\0') {p++; n++; } return(n); }
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