两种实现方式:
1.将原本的盒子与img标签放大至全屏浏览。
2.新建一个div和img标签进行全屏浏览。这样不会改变布局。
第一种:
效果:

组件代码:
<template>
<div :class="isScreen ? 'fullImg' : 'norImg'">
<img
:src="props.src"
alt="img"
:width="isScreen ? 'auto' : props.width"
:height="isScreen ? 'auto' : props.height"
/>
<!-- 放大缩小按钮 -->
<div class="toBig" @click="showImg">
<svg
t="1718433997569"
class="icon"
viewBox="0 0 1024 1024"
version="1.1"
xmlns="http://www.w3.org/2000/svg"
p-id="2426"
width="50"
height="50"
>
<path :d="iconPath" fill="#140202" p-id="2427"></path>
</svg>
</div>
</div>
</template>
<script setup lang="ts">
import { ref } from "vue";
const props = defineProps({
src: {
type: String,
default: "https://picsum.photos/200/300",
},
width: {
type: Number,
},
height: {
type: Number,
},
});
let iconPath = ref<string>(
"M800 163H226.2c-52.8 0-95.6 42.8-95.6 95.6v573.8c0 52.8 42.8 95.6 95.6 95.6H800c52.8 0 95.6-42.8 95.6-95.6V258.6c0-52.8-42.8-95.6-95.6-95.6zM465.3 832.4H250.8c-6.7 0-12.7-2.8-17-7.2-4.6-3.9-7.5-9.6-7.5-16.7V593.3c0-13.2 10.7-23.9 23.9-23.9s23.9 10.7 23.9 23.9l-0.8 157.2 162.3-162.3 33.8 33.8-162.6 162.6h158.5c13.2 0 23.9 10.7 23.9 23.9s-10.7 23.9-23.9 23.9zM800 497.7c0 13.2-10.7 23.9-23.9 23.9s-23.9-10.7-23.9-23.9l0.8-157.2-162.4 162.3-33.8-33.8 162.5-162.5H560.8c-13.2 0-23.9-10.7-23.9-23.9s10

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