Question

输入一个字符串，计算其长度(不用strlen函数)

不用指针 用最基础的知识

Answer 1

#include <stdio.h>

main()
{
char str[20];
int i, j;

printf("please input a string:");
scanf("%s", str);//输入字符串
for(j = 0; j < 20; j++)
{
if(str[j] != '\0')
{
i++;
}
else
{
break;
}
}

printf("The length of the string is %d", i);//输出

}

Answer 2

#include
int
main()
{
int
i;
char
a[100];
gets(a);
for(i=0;a[i]!='\0';i++);
printf("%d\n",i);
return
0;
}

Answer 3

#include
main()
{
char
str[20];
int
i,
j;
printf("please
input
a
string:");
scanf("%s",
str);//输入字符串
for(j
=
0;
j
<
20;
j++)
{
if(str[j]
!=
'\0')
{
i++;
}
else
{
break;
}
}
printf("The
length
of
the
string
is
%d",
i);//输出
}

Answer 4

int mystrlen (char * s)
{
char * p = s ;
while (*p++ != '\0') ;
return (p - s - 1) ;
}

Answer 5

你边种语言噶