From d2a6e99010902c8c8417c259d6d6ed2d6401fdfa Mon Sep 17 00:00:00 2001
From: wandoubaba517 <wandoubaba517@gmail.com>
Date: Tue, 5 Dec 2023 20:04:52 +0800
Subject: [PATCH] talkback.c

---
 c04_string/talkback.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 c04_string/talkback.c

diff --git a/c04_string/talkback.c b/c04_string/talkback.c
new file mode 100644
index 0000000..296e39a
--- /dev/null
+++ b/c04_string/talkback.c
@@ -0,0 +1,27 @@
+/* talkback.c - 演示与用户交互 */
+#include <stdio.h>
+#include <string.h> // rkwastrlen()函数的原型
+
+#define DENSITY 62.4    // 人体密码（单位：磅/立方英尺）
+
+int main(void)
+{
+    float weight, volume;
+    int size, letters;
+    char name[40];  // name是一个可容纳40个字符的数组
+
+    printf("Hi! What's your 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 name has %d letters,\n", letters);
+    printf("and we have %d bytes to store if.\n", size);
+
+    return 0;
+}
\ No newline at end of file