text.vue
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<template>
<view>
<page-head :title="title"></page-head>
<view class="uni-padding-wrap uni-common-mt">
<view class="text-box" scroll-y="true">
<text>{{text}}</text>
</view>
<view class="uni-btn-v">
<button type="primary" :disabled="!canAdd" @click="add">add line</button>
<button type="warn" :disabled="!canRemove" @click="remove">remove line</button>
</view>
</view>
</view>
</template>
<script>
export default {
data() {
return {
title: 'text',
texts: [
'HBuilder，400万开发者选择的IDE',
'MUI，轻巧、漂亮的前端开源框架',
'wap2app，M站快速转换原生体验的App',
'5+Runtime，为HTML5插上原生的翅膀',
'HBuilderX，轻巧、极速，极客编辑器',
'uni-app，终极跨平台方案',
'HBuilder，400万开发者选择的IDE',
'MUI，轻巧、漂亮的前端开源框架',
'wap2app，M站快速转换原生体验的App',
'5+Runtime，为HTML5插上原生的翅膀',
'HBuilderX，轻巧、极速，极客编辑器',
'uni-app，终极跨平台方案',
'......'
],
text: '',
canAdd: true,
canRemove: false,
extraLine: []
}
},
methods: {
add: function(e) {
this.extraLine.push(this.texts[this.extraLine.length % 12]);
this.text = this.extraLine.join('\n');
this.canAdd = this.extraLine.length < 12;
this.canRemove = this.extraLine.length > 0;
},
remove: function(e) {
if (this.extraLine.length > 0) {
this.extraLine.pop();
this.text = this.extraLine.join('\n');
this.canAdd = this.extraLine.length < 12;
this.canRemove = this.extraLine.length > 0;
}
}
}
}
</script>
<style>
.text-box {
margin-bottom: 40rpx;
padding: 40rpx 0;
display: flex;
min-height: 300rpx;
background-color: #FFFFFF;
justify-content: center;
align-items: center;
text-align: center;
font-size: 30rpx;
color: #353535;
line-height: 1.8;
}
</style>