加油，奥里给！

src/components/Canvas/DepthCanvas/components/tools/depth-select.vue

@@ -1,7 +1,13 @@
 <template>
 	<div class="depth-select">
 		<el-select :model-value="modelValue" @change="onChange" v-bind="attrs">
-			<el-option v-for="v in list" :key="v.value" :label="v.label" :value="v.value" />
+			<el-option
+				v-for="v in list"
+				:key="v.value"
+				:label="v.label"
+				:value="v.value"
+				:disabled="modelValue === v.value"
+			/>
 		</el-select>
 	</div>
 </template>
@@ -22,6 +28,7 @@
 <style scoped lang="less">
 	.depth-select {
 		&:deep(.el-select) {
+			--el-input-text-color: #000;
 			--el-select-input-font-size: 1.2rem;
 			.el-select__wrapper {
 				font-size: 1.2rem;
@@ -46,6 +53,11 @@
 				height: 3rem;
 				line-height: 3rem;
 				font-size: 1.2rem;
+				color: #000;
+				font-weight: 400;
+				&.is-disabled {
+					color: #909399;
+				}
 			}
 		}
 	}