diff --git a/最后一舞/C语言基础进阶合集版编程题.md b/最后一舞/C语言基础进阶合集版编程题.md
index 2611d17..01ebc88 100644
--- a/最后一舞/C语言基础进阶合集版编程题.md
+++ b/最后一舞/C语言基础进阶合集版编程题.md
@@ -851,8 +851,8 @@ int main(){
 			*(q-strlen(str2))='\0';
 			p-=strlen(str2);
 		}
-		if(*p == *str2){
-			p--;
+		if(*q != str2){
+			p-= q-str2;
 		}
 		p++;
 	}