diff --git a/samples/api/texture_loading/texture_loading.cpp b/samples/api/texture_loading/texture_loading.cpp
index 7405395..b3fe47c 100644
--- a/samples/api/texture_loading/texture_loading.cpp
+++ b/samples/api/texture_loading/texture_loading.cpp
@@ -1336,7 +1336,7 @@ void TextureLoading::prepare_pipeline_point_line()
 
 	// 输入装配 (绘制点列表)
 	VkPipelineInputAssemblyStateCreateInfo input_assembly_state{ VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO };
-	input_assembly_state.topology = VK_PRIMITIVE_TOPOLOGY_LINE_LIST;
+	input_assembly_state.topology = VK_PRIMITIVE_TOPOLOGY_LINE_STRIP;// VK_PRIMITIVE_TOPOLOGY_LINE_LIST;
 	input_assembly_state.primitiveRestartEnable = VK_FALSE;
 
 	// 光栅化
@@ -2064,7 +2064,7 @@ void TextureLoading::update_point_vertex_buffer_line(float* pos, int count, floa
 	glm::vec3 color = { r,g,b };
 
 	// 1. 准备顶点数据
-	std::vector<LineVertex> vertices(point_count_line);
+	std::vector<LineVertex> vertices;
 
 	for (int i = 0; i < point_count_line - 1; ++i) 
 	{