diff --git a/src/components/tool/ToolNav.astro b/src/components/tool/ToolNav.astro
index dfd339e..3e0e01a 100644
--- a/src/components/tool/ToolNav.astro
+++ b/src/components/tool/ToolNav.astro
@@ -1,3 +1,6 @@
+---
+---
+
 <ul class="tool-list">
   <li class="tool-item"><a href="/tool/unit_conversion">单位换算</a></li>
 </ul>
diff --git a/src/components/tool/unit_conversion/DataUnitConversion.vue b/src/components/tool/unit_conversion/DataUnitConversion.vue
index a045099..8b3d574 100644
--- a/src/components/tool/unit_conversion/DataUnitConversion.vue
+++ b/src/components/tool/unit_conversion/DataUnitConversion.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed, h, ref } from 'vue'
+import { computed, ref } from 'vue'
 import BigNumber from "bignumber.js";
 
 const unitToByte: { [name: string]: number } = {
@@ -38,11 +38,11 @@ let variable: { [name: keyof typeof unitToByte]: string } = {
 
 const size = ref(variable);
 
-function sizeChanged(event: any, unitName: keyof typeof unitToByte) {
+function sizeChanged(unitName: keyof typeof unitToByte):void {
   let result: { [name in keyof typeof unitToByte]: string } = Object();
   // assign 0 to current input if nothing is passed
   if (size.value[unitName].length === 0) result[unitName] = '0';
-  let inputedBytes = new BigNumber(unitToByte[unitName]).multipliedBy(size.value[unitName]);
+  let inputedBytes: BigNumber = new BigNumber(unitToByte[unitName]).multipliedBy(size.value[unitName]);
   for (const key in unitToByte) {
     result[key] = inputedBytes.div(unitToByte[key]).toString();
   }
@@ -57,7 +57,7 @@ function sizeChanged(event: any, unitName: keyof typeof unitToByte) {
 }
 
 const isMultipleOf4KiB = computed(() => {
-  let userInput = new BigNumber(size.value["unit-ki-byte"])
+  let userInput: BigNumber = new BigNumber(size.value["unit-ki-byte"])
   if (userInput.toNumber() === 0) return false;
   return userInput.mod(4).toNumber() === 0 ? true : false;
 })
@@ -69,22 +69,22 @@ const isMultipleOf4KiB = computed(() => {
     <p>1000 进制并以 Byte 计: </p>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-k-byte" type="text" v-model="size['unit-k-byte']"
-        @input="sizeChanged($event, 'unit-k-byte')">
+        @input="sizeChanged('unit-k-byte')">
       <span class="unit-name">KB</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-m-byte" type="text" v-model="size['unit-m-byte']"
-        @input="sizeChanged($event, 'unit-m-byte')">
+        @input="sizeChanged('unit-m-byte')">
       <span class="unit-name">MB</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-g-byte" type="text" v-model="size['unit-g-byte']"
-        @input="sizeChanged($event, 'unit-g-byte')">
+        @input="sizeChanged('unit-g-byte')">
       <span class="unit-name">GB</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-t-byte" type="text" v-model="size['unit-t-byte']"
-        @input="sizeChanged($event, 'unit-t-byte')">
+        @input="sizeChanged('unit-t-byte')">
       <span class="unit-name">TB</span>
     </div>
   </div>
@@ -92,35 +92,33 @@ const isMultipleOf4KiB = computed(() => {
     <p>1024 进制并以 Byte 计</p>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-ki-byte" type="text" v-model="size['unit-ki-byte']"
-        @input="sizeChanged($event, 'unit-ki-byte')">
+        @input="sizeChanged('unit-ki-byte')">
       <span class="unit-name">KiB</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-mi-byte" type="text" v-model="size['unit-mi-byte']"
-        @input="sizeChanged($event, 'unit-mi-byte')">
+        @input="sizeChanged('unit-mi-byte')">
       <span class="unit-name">MiB</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-gi-byte" type="text" v-model="size['unit-gi-byte']"
-        @input="sizeChanged($event, 'unit-gi-byte')">
+        @input="sizeChanged('unit-gi-byte')">
       <span class="unit-name">GiB</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-ti-byte" type="text" v-model="size['unit-ti-byte']"
-        @input="sizeChanged($event, 'unit-ti-byte')">
+        @input="sizeChanged('unit-ti-byte')">
       <span class="unit-name">TiB</span>
     </div>
   </div>
   <div class="unit-conversion-computation-area byte-bit">
     <p>以 Byte (B) / bit (b) 计:</p>
     <div class="unit-conversion-computation-node">
-      <input class="size-text" id="unit-byte" type="text" v-model="size['unit-byte']"
-        @input="sizeChanged($event, 'unit-byte')">
+      <input class="size-text" id="unit-byte" type="text" v-model="size['unit-byte']" @input="sizeChanged('unit-byte')">
       <span class="unit-name">B</span>
     </div>
     <div class="unit-conversion-computation-node">
-      <input class="size-text" id="unit-bit" type="text" v-model="size['unit-bit']"
-        @input="sizeChanged($event, 'unit-bit')">
+      <input class="size-text" id="unit-bit" type="text" v-model="size['unit-bit']" @input="sizeChanged('unit-bit')">
       <span class="unit-name">b</span>
     </div>
   </div>
@@ -128,22 +126,22 @@ const isMultipleOf4KiB = computed(() => {
     <p>1000 进制并以 bit 计:</p>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-k-bit" type="text" v-model="size['unit-k-bit']"
-        @input="sizeChanged($event, 'unit-k-bit')">
+        @input="sizeChanged('unit-k-bit')">
       <span class="unit-name">Kb</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-m-bit" type="text" v-model="size['unit-m-bit']"
-        @input="sizeChanged($event, 'unit-m-bit')">
+        @input="sizeChanged('unit-m-bit')">
       <span class="unit-name">Mb</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-g-bit" type="text" v-model="size['unit-g-bit']"
-        @input="sizeChanged($event, 'unit-g-bit')">
+        @input="sizeChanged('unit-g-bit')">
       <span class="unit-name">Gb</span>
     </div>
     <div class="unit-conversion-computation-node">
       <input class="size-text" id="unit-t-bit" type="text" v-model="size['unit-t-bit']"
-        @input="sizeChanged($event, 'unit-t-bit')">
+        @input="sizeChanged('unit-t-bit')">
       <span class="unit-name">Tb</span>
     </div>
   </div>