static void winterfell(String[] pyke) { for (int i = 0; i < pyke.length; i += 3){ StringBuilder harrenhal = new StringBuilder(); for (int j = i; j < i + 3; j++) { harrenhal.append(pyke[j] == null ? j + 1 : pyke[j]); harrenhal.append(" "); } System.out.println(harrenhal); } 表示什么 }
时间: 2023-06-19 15:08:19 浏览: 68
这段代码是一个静态方法 `winterfell`,它接收一个字符串数组作为参数。该方法将该字符串数组中的元素按照每三个一组进行循环,将每组字符串拼接成一个新的字符串,并在其中间添加两个空格,最终将该新字符串打印到控制台上。如果字符串数组中有某个元素为 `null`,则该元素所在的位置会被替换为该元素的索引加 1。这段代码的实现逻辑类似于将字符串数组按照每三个一组进行分组,并在每组之间添加分隔符。
相关问题
vue3的elementplus 穿梭框实现镶嵌表格穿梭组件
可以使用Element Plus的Transfer组件结合Table组件来实现镶嵌表格穿梭组件。具体步骤如下:
1. 引入Transfer和Table组件
```javascript
import { Transfer, TableColumn } from 'element-plus';
```
2. 定义需要穿梭的数据和列配置
```javascript
// 穿梭框左侧表格数据
const tableData = [
{
id: 1,
name: 'John Brown',
age: 18,
address: 'New York No.1 Lake Park'
},
{
id: 2,
name: 'Jim Green',
age: 24,
address: 'London No.1 Lake Park'
},
{
id: 3,
name: 'Joe Black',
age: 30,
address: 'Sydney No.1 Lake Park'
},
{
id: 4,
name: 'Jon Snow',
age: 26,
address: 'Winterfell No.1 Castle'
}
];
// 穿梭框左侧表格列配置
const tableColumns = [
{
label: '姓名',
prop: 'name'
},
{
label: '年龄',
prop: 'age'
},
{
label: '地址',
prop: 'address'
}
];
```
3. 在模板中使用Transfer和Table组件
```html
<el-transfer
v-model="selectedData"
:data="tableData"
:titles="['可选数据', '已选数据']"
>
<el-table-column label="姓名" prop="name"></el-table-column>
<el-table-column label="年龄" prop="age"></el-table-column>
<el-table-column label="地址" prop="address"></el-table-column>
</el-transfer>
```
4. 完整示例代码
```html
<template>
<div>
<el-transfer
v-model="selectedData"
:data="tableData"
:titles="['可选数据', '已选数据']"
>
<el-table-column label="姓名" prop="name"></el-table-column>
<el-table-column label="年龄" prop="age"></el-table-column>
<el-table-column label="地址" prop="address"></el-table-column>
</el-transfer>
</div>
</template>
<script>
import { Transfer, TableColumn } from 'element-plus';
export default {
components: {
Transfer,
TableColumn
},
data() {
return {
tableData: [
{
id: 1,
name: 'John Brown',
age: 18,
address: 'New York No.1 Lake Park'
},
{
id: 2,
name: 'Jim Green',
age: 24,
address: 'London No.1 Lake Park'
},
{
id: 3,
name: 'Joe Black',
age: 30,
address: 'Sydney No.1 Lake Park'
},
{
id: 4,
name: 'Jon Snow',
age: 26,
address: 'Winterfell No.1 Castle'
}
],
selectedData: []
};
}
};
</script>
```
用element Ui写一个带单选按钮的table
以下是使用Element UI编写带有单选按钮的表格的示例代码:
```html
<template>
<div>
<el-table :data="tableData" style="width: 100%">
<el-table-column type="selection" width="55"></el-table-column>
<el-table-column prop="name" label="Name"></el-table-column>
<el-table-column prop="age" label="Age"></el-table-column>
<el-table-column prop="address" label="Address"></el-table-column>
</el-table>
</div>
</template>
<script>
export default {
data() {
return {
tableData: [
{
name: 'John Brown',
age: 18,
address: 'New York No. 1 Lake Park'
},
{
name: 'Jim Green',
age: 24,
address: 'London No. 1 Lake Park'
},
{
name: 'Joe Black',
age: 30,
address: 'Sydney No. 1 Lake Park'
},
{
name: 'Jon Snow',
age: 26,
address: 'Winterfell'
}
]
}
}
}
</script>
```
在上面的示例中,我们使用了`el-table-column`组件来创建表格列,并使用`prop`属性来指定表格数据中对应的字段。在第一列中使用了`type="selection"`来创建单选按钮。选中行时,`el-table`组件会触发`@selection-change`事件,我们可以在此事件中获取选中的行数据。
```html
<el-table :data="tableData" @selection-change="handleSelectionChange" style="width: 100%">
<el-table-column type="selection" width="55"></el-table-column>
<el-table-column prop="name" label="Name"></el-table-column>
<el-table-column prop="age" label="Age"></el-table-column>
<el-table-column prop="address" label="Address"></el-table-column>
</el-table>
```
```js
export default {
data() {
return {
tableData: [
{
name: 'John Brown',
age: 18,
address: 'New York No. 1 Lake Park'
},
{
name: 'Jim Green',
age: 24,
address: 'London No. 1 Lake Park'
},
{
name: 'Joe Black',
age: 30,
address: 'Sydney No. 1 Lake Park'
},
{
name: 'Jon Snow',
age: 26,
address: 'Winterfell'
}
]
}
},
methods: {
handleSelectionChange(selection) {
console.log(selection)
}
}
}
```