diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index f9f5767..2586270 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -73,7 +73,7 @@ jobs:
           mkdir cd ${{github.workspace}}/js && cd ${{github.workspace}}/js/
           git clone --depth=1 https://github.com/smilelc3/MyLittleTool.git
           sudo apt install emscripten -y
-          emcc MyLittleTool/Hex2Ascii.cpp MyLittleTool/Ascii2Hex.cpp MyLittleTool/Linear11Trans.cpp -D WASM_EMCC -o MyLittleTool.js -Oz -flto -s WASM=1 -s "EXPORTED_RUNTIME_METHODS=['cwrap']"
+          emcc MyLittleTool/Hex2Ascii.cpp MyLittleTool/Ascii2Hex.cpp MyLittleTool/Linear11Trans.cpp MyLittleTool/checksum_byteacc.cpp -D WASM_EMCC -o MyLittleTool.js -Oz -flto -s WASM=1 -s EXPORTED_FUNCTIONS='["_malloc", "_free"]' -s "EXPORTED_RUNTIME_METHODS=['cwrap']" -s ALLOW_MEMORY_GROWTH -s ASSERTIONS=1
           rm -rf MyLittleTool
           cd -
     
diff --git "a/markdown/\345\260\217\345\267\245\345\205\267\351\233\206\345\220\210.md" "b/markdown/\345\260\217\345\267\245\345\205\267\351\233\206\345\220\210.md"
index d0469b4..f13f6a5 100644
--- "a/markdown/\345\260\217\345\267\245\345\205\267\351\233\206\345\220\210.md"
+++ "b/markdown/\345\260\217\345\267\245\345\205\267\351\233\206\345\220\210.md"
@@ -23,25 +23,36 @@ date: 2024-10-20
     <div class="output" id="outHexStr">输出: </div>
 </div>
 <hr>
-<div class="echo-section" id="Linea11Trans">
+<div class="tool-section" id="Linea11Trans">
     <h3>Linear11 格式转换实数</h3>
     <input type="text" placeholder="输入Linear11格式数，如：0x00dc" id="inLinear11" />
     <button onclick="summit('Linea11Trans', 'inLinear11', 'outReal')">提交</button>
     <div class="output" id="outReal">输出: </div>
 </div>
 <hr>
-<script src="/js/MyLittleTool.js"></script>
+<div class="tool-section" id="ByteAccByMem">
+    <h3>校验和计算(ByteAcc算法)</h3>
+    <input type="file" id="fileInput" />
+    <button onclick="summit('ByteAcc', null, 'outByteAcc')">提交</button>
+    <div class="output" id="outByteAcc">输出: </div>
+</div>
+<hr>
+<script src="js/MyLittleTool.js"></script>
 <script>
-    let C_Hex2Ascii, C_Ascii2Hex, C_Linear11Trans;
+    let C_Hex2Ascii, C_Ascii2Hex, C_Linear11Trans, C_ByteAccByMem;
     // 等待 wasm 模块加载
     Module.onRuntimeInitialized = async () => {
         C_Hex2Ascii = Module.cwrap('C_Hex2Ascii', 'string', ['string']);
         C_Ascii2Hex = Module.cwrap('C_Ascii2Hex', 'string', ['string']);
         C_Linear11Trans = Module.cwrap('C_Linear11Trans', 'string', ['string']);
+        C_ByteAccByMem = Module.cwrap('C_ByteAccByMem', 'string', ['number', 'number']);
     };
     // 调用 wasm 中导出的函数
     function summit(funcName, inputId, outputId) {
-        const input = document.getElementById(inputId).value;
+        let input;
+        if (document.getElementById(inputId)) {
+            input = document.getElementById(inputId).value;
+        }
         let output;
         switch (funcName) {
             case 'Hex2Ascii':
@@ -53,12 +64,59 @@ date: 2024-10-20
             case 'Linea11Trans':
                 output = C_Linear11Trans(input);
                 break;
+            case 'ByteAcc':
+                return doByteAcc(outputId);
         }
+        updateOutput(outputId, output);
+    }
+    function updateOutput(outputId, output) {
         document.getElementById(outputId).innerText = `输出: ${output}`;
     }
+    function doByteAcc(outputId) {
+        const fileInput = document.getElementById('fileInput');
+        if (fileInput.files.length === 0) {
+            alert('请先选择一个文件');
+            return;
+        }
+        const file = fileInput.files[0];
+        if (file.size > 2147483648 / 2 * 0.9) {
+            console.log(file.size + " is out of range")
+            updateOutput(outputId, "文件过大");
+            return;
+        }
+        const reader = new FileReader();
+        reader.onload = (event) => {
+            updateOutput(outputId, "处理中");
+            arrayBuffer = event.target.result;
+            byteArray = new Uint8Array(arrayBuffer);
+            const length = byteArray.length;
+            // 分配内存并拷贝数据
+            const buffer = Module._malloc(length);
+            try {
+                Module.HEAPU8.set(byteArray, buffer);
+                // 调用 C++ 函数打印字节
+                const checksumByteAcc = C_ByteAccByMem(buffer, length);
+                updateOutput(outputId, checksumByteAcc);
+            } catch (error) {
+                console.error("Error during C function call:", error);
+                updateOutput(outputId, "处理出错");
+            } finally {
+                // 释放内存
+                Module._free(buffer);
+                // 清理引用以帮助释放内存
+                arrayBuffer = null;
+                byteArray = null;
+                reader.onload = null; // 清理事件处理程序
+            }
+        };
+        reader.onprogress = (event) => {
+            updateOutput(outputId, "处理中");
+        }
+        reader.readAsArrayBuffer(file);
+    }
 </script>
 <style>
-    input[type="text"] {
+    input[type="text"], input[type="file"] {
         width: 100%;
         padding: 10px;
         margin: 10px 0;