diff --git a/2208/C语言/字符串处理.md b/2208/C语言/字符串处理.md
index fd3c48a..c990cf8 100644
--- a/2208/C语言/字符串处理.md
+++ b/2208/C语言/字符串处理.md
@@ -66,6 +66,8 @@ int main(){
 
 最终结果: “12ABC34567890”
 
+
+
 ### 4. 字符串查找
 
 字符串查找: “123456123abc123hbc”
diff --git a/2208/C语言/源码/字符串-3.c b/2208/C语言/源码/字符串-3.c
new file mode 100644
index 0000000..86afa6f
--- /dev/null
+++ b/2208/C语言/源码/字符串-3.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <string.h>
+
+int main(){
+	char str[100];
+	char subStr[100];
+	int i, j, index;
+	gets(str);
+	gets(subStr);
+	scanf("%d", &index);
+	
+	i=strlen(subStr) + strlen(str);//����+�Ӵ�=�����ϲ���Ľ�����λ�� 
+	str[i] = '\0';
+	i--;//13->i-3 -> i
+	for(j=strlen(str)-1;j>=index;j--){
+		str[i--] = str[j];
+	}	
+
+	
+	
+//	for(i=0;i<strlen(subStr);i++){
+//		str[index+i] =subStr[i]; 	
+//	}
+	puts(str);
+
+	return 0;
+}
+