运行下面的程序，在要求您输入名字时，请输入您的名字和姓氏。会发生什么？为什么？
// talkback.c -- 一个能为您提供一些嘻嘻的对话程序
#include <stdio.h>
#include <string.h> // 提供strlen()函数的原型
#define DENSITY 62.4 // 人的密度（单位是英镑/每立方英尺）
int main()
{
float weight, volume;
int size, letters;
char name[40]; // name是一个有40个字符的数组
printf("Hi! What's your first name?\n");
scanf("%s", name);
printf("%s, What's your weight in pounds?\n", name);
scanf("%f", &weight);
size = sizeof name;
letters = strlen(name);
volume = weight / DENSITY;
printf("Well, %s, your volume is %2.2f cubic feet.\n",
name, volume);
printf("Also, your first name has %d letters, \n",
letters);
printf("and we have %d bytes to store it in.\n", size);
return 0;
}
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