VUE 实现验证码图片显示
时间: 2023-06-27 15:03:56 浏览: 226
在 Vue 中实现验证码图片显示可以通过以下步骤:
1. 在 Vue 组件中引入验证码图片组件的相关代码,例如:
```html
<template>
<div>
<img :src="captchaImg" alt="验证码">
<button @click="refreshCaptcha">刷新</button>
</div>
</template>
<script>
import captcha from 'captcha-lib'
export default {
data() {
return {
captchaImg: ''
}
},
mounted() {
this.refreshCaptcha()
},
methods: {
refreshCaptcha() {
this.captchaImg = captcha.generate()
}
}
}
</script>
```
2. 在 `mounted` 钩子函数中调用 `refreshCaptcha` 方法生成验证码图片的初始值。
3. 在 `refreshCaptcha` 方法中使用验证码库生成验证码图片的 base64 编码,例如:
```javascript
import captcha from 'captcha-lib'
export default {
/* ... */
methods: {
refreshCaptcha() {
this.captchaImg = captcha.generate()
}
}
}
```
4. 在模板中使用 `v-bind` 指令将 `captchaImg` 绑定到 `img` 元素的 `src` 属性上,例如:
```html
<template>
<div>
<img :src="captchaImg" alt="验证码">
<button @click="refreshCaptcha">刷新</button>
</div>
</template>
```
这样就可以在 Vue 中实现验证码图片的显示了。需要注意的是,上面的示例代码中的 `captcha` 库是一个虚构的库,实际使用时需要替换成具体的验证码生成库。
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