非是非Thinking, Express
|
测验题目
问题：
Implement C funtion "strlen" in your own code.
参考答案：
----
unsigned int strlen(const char *s){
unsigned int i = 0;
while(s[i] != '\0'){
i++;
}
return i;
}
----
unsigned int strlen(const char *s){
const char *p = s;
while(*p++ != '\0');
return p-s-1;
}