要在Vue.js中实现JSON数据的对比差异功能，你可以使用一些库来简化任务，比如diff-match-patch。以下是一个简单的例子，演示如何使用deep-diff库在Vue.js中比较两个JSON对象的差异：
首先，确保你的项目中已经安装了diff-match-patch库：

npm install diff-match-patch

然后，你可以在Vue组件中使用它：

<template><div class="json-diff"><div class="side-by-side"><div class="left"><h3>Original JSON</h3><pre>{{ prettyJson(jsonOriginal) }}</pre></div><div class="right"><h3>Modified JSON</h3><pre>{{ prettyJson(jsonModified) }}</pre></div></div><div class="diff-result"><h3>Difference</h3><div v-html="diffHtml"></div></div></div>
</template><script>
import DiffMatchPatch from 'diff-match-patch';export default {data() {return {jsonOriginal: {name: 'Jane',age: 25,city: 'New York',},jsonModified: {name: 'Jane',age: 26,city: 'Berlin',married: false,},};},computed: {diffHtml() {const dmp = new DiffMatchPatch();const diff = dmp.diff_main(this.prettyJson(this.jsonOriginal),this.prettyJson(this.jsonModified));dmp.diff_cleanupSemantic(diff);return dmp.diff_prettyHtml(diff);},},methods: {prettyJson(json) {return JSON.stringify(json, null, 2);},},
};
</script><style scoped>
.json-diff {display: flex;flex-direction: column;
}.side-by-side {display: flex;margin-bottom: 20px;
}.left, .right {flex: 1;
}.diff-result {background: #f8f8f8;padding: 20px;
}/* 高亮样式 */
.diff {color: black;
}.ins {background: #e6ffe6;text-decoration: none;
}.del {background: #ffe6e6;text-decoration: none;
}pre {white-space: pre-wrap;word-wrap: break-word;
}
</style>