add first commit

content.js

@@ -0,0 +1,35 @@
+// 替換文字的函數
+function replaceText(node, replacements) {
+    if (node.nodeType === Node.TEXT_NODE) {
+      let text = node.nodeValue;
+      for (let [key, value] of Object.entries(replacements)) {
+        const regex = new RegExp(key, "g");
+        text = text.replace(regex, value);
+      }
+      node.nodeValue = text;
+    } else if (node.nodeType === Node.ELEMENT_NODE) {
+      node.childNodes.forEach((child) => replaceText(child, replacements));
+    }
+  }
+  
+  // 初始化替換
+  function initializeReplacements() {
+    chrome.storage.local.get("replacements", (data) => {
+      const replacements = data.replacements || {};
+      replaceText(document.body, replacements);
+  
+      // 監控動態內容
+      const observer = new MutationObserver((mutations) => {
+        mutations.forEach((mutation) => {
+          mutation.addedNodes.forEach((node) => {
+            if (node.nodeType === Node.ELEMENT_NODE || node.nodeType === Node.TEXT_NODE) {
+              replaceText(node, replacements);
+            }
+          });
+        });
+      });
+      observer.observe(document.body, { childList: true, subtree: true });
+    });
+  }
+  
+  initializeReplacements();