“Vue 网络应用 天知道 点击查询”的版本间的差异
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Jihongchang(讨论 | 贡献) |
Jihongchang(讨论 | 贡献) |
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(未显示同一用户的1个中间版本) | |||
第3行: | 第3行: | ||
=== 功能分析 === | === 功能分析 === | ||
− | # | + | # 点击城市(<u>v-on</u> <u>自定义参数</u>) |
− | # 查询数据 | + | # 查询数据(this.方法()) |
− | # | + | # 渲染数据(this.方法()) |
+ | |||
+ | === 完整代码示例 === | ||
+ | <syntaxhighlight lang="html"> | ||
+ | <html> | ||
+ | <head> | ||
+ | <meta charset="UTF-8"> | ||
+ | <meta name="viewport" content="width=device-width,initial-scale=1.0"> | ||
+ | <meta http-equiv="X-UA-Compatible" content="ie=edge"> | ||
+ | <title>天知道 回车查询</title> | ||
+ | </head> | ||
+ | |||
+ | <body> | ||
+ | |||
+ | <div class="wrap" id="app"> | ||
+ | |||
+ | |||
+ | |||
+ | <div class="search_form"> | ||
+ | |||
+ | <div class="logo"><img src="img/logo.png" alt="logo"></div> | ||
+ | |||
+ | <div class="form_group"> | ||
+ | <input type="text" v-model="city" @keyup.enter="searchWeather" class="input_txt" placeholder="请输入查询的城市"> | ||
+ | <button class="input_sub">搜 索</button> | ||
+ | </div> | ||
+ | |||
+ | |||
+ | <div class="hotkey"> | ||
+ | <a href="javascript:;" @click="changeCity('北京')">北京</a> | ||
+ | <a href="javascript:;" @click="changeCity('上海')">上海</a> | ||
+ | <a href="javascript:;" @click="changeCity('广州')">广州</a> | ||
+ | <a href="javascript:;" @click="changeCity('深圳')">深圳</a> | ||
+ | </div> | ||
+ | |||
+ | </div> | ||
+ | |||
+ | |||
+ | <ul class="weather_list"> | ||
+ | <li v-for="item in weatherList"> | ||
+ | <div class="info_type"><span class="iconfont">{{ item.type }}</span></div> | ||
+ | |||
+ | <div class="info_temp"> | ||
+ | <b>{{ item.low }}</b> | ||
+ | ~ | ||
+ | <b>{{ item.high }}</b> | ||
+ | </div> | ||
+ | <div class="info_date"><span>{{item.date}}</span></div> | ||
+ | </li> | ||
+ | |||
+ | </ul> | ||
+ | </div> | ||
+ | |||
+ | |||
+ | <!-- 开发环境版本,包含了有帮助的命令行警告 --> | ||
+ | <script src="vue.js"></script> | ||
+ | <script src="axios.min.js"></script> | ||
+ | |||
+ | <script> | ||
+ | /* | ||
+ | 请求地址:http://wthrcdn.etouch.cn/weather_mini | ||
+ | 请求方法:get | ||
+ | 请求参数:city(城市名) | ||
+ | 响应内容:天气信息 | ||
+ | |||
+ | 1.点击回车 | ||
+ | 2.查询数据 | ||
+ | 3.渲染数据 | ||
+ | */ | ||
+ | var app = new Vue({ | ||
+ | el:"#app", | ||
+ | data:{ | ||
+ | city:'', | ||
+ | weatherList:[ | ||
+ | // { | ||
+ | // type:"测试晴", | ||
+ | // low:"28", | ||
+ | // high:"30", | ||
+ | // date:"天" | ||
+ | // }, | ||
+ | // { | ||
+ | // type:"测试晴", | ||
+ | // low:"28", | ||
+ | // high:"30", | ||
+ | // date:"天" | ||
+ | // } | ||
+ | ] | ||
+ | }, | ||
+ | methods:{ | ||
+ | searchWeather: function(){ | ||
+ | console.log("天气查询"); | ||
+ | console.log(this.city); | ||
+ | // 调用接口 | ||
+ | var that = this; | ||
+ | |||
+ | // axios.get('http://wthrcdn.etouch.cn/weather_mini?city=' + this.city).then(function(){ | ||
+ | axios.get('https://mcs.zijieapi.com/list').then(function(response){ | ||
+ | |||
+ | // console.log(response); | ||
+ | // console.log(response.data.data.forecast); | ||
+ | // debugger; | ||
+ | console.log(response); | ||
+ | |||
+ | // that.weatherList = response.data.data.forecast; | ||
+ | var testData = [ | ||
+ | { | ||
+ | type:"测试晴", | ||
+ | low:"28", | ||
+ | high:"30", | ||
+ | date:"天" | ||
+ | }, | ||
+ | { | ||
+ | type:"测试晴", | ||
+ | low:"28", | ||
+ | high:"30", | ||
+ | date:"天" | ||
+ | } | ||
+ | ]; | ||
+ | |||
+ | that.weatherList = testData; | ||
+ | |||
+ | }).catch(function(err){ | ||
+ | |||
+ | }) | ||
+ | },//end | ||
+ | changeCity:function(city){ | ||
+ | this.city = city; | ||
+ | this.searchWeather(); | ||
+ | } | ||
+ | }//end method | ||
+ | }); | ||
+ | </script> | ||
+ | |||
+ | </body> | ||
+ | </html> | ||
+ | </syntaxhighlight> | ||
+ | |||
+ | === 总结和注意 === | ||
+ | |||
+ | * 自定义参数可以让代码的 <u>复用性</u> 更高 | ||
+ | * <u>methods</u> 中定义的方法内部,可以通过 <u>this</u> 关键字点出其他的方法 |
2023年8月10日 (四) 06:35的最新版本
https://www.bilibili.com/video/BV12J411m7MG/?p=29
功能分析
- 点击城市(v-on 自定义参数)
- 查询数据(this.方法())
- 渲染数据(this.方法())
完整代码示例
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>天知道 回车查询</title>
</head>
<body>
<div class="wrap" id="app">
<div class="search_form">
<div class="logo"><img src="img/logo.png" alt="logo"></div>
<div class="form_group">
<input type="text" v-model="city" @keyup.enter="searchWeather" class="input_txt" placeholder="请输入查询的城市">
<button class="input_sub">搜 索</button>
</div>
<div class="hotkey">
<a href="javascript:;" @click="changeCity('北京')">北京</a>
<a href="javascript:;" @click="changeCity('上海')">上海</a>
<a href="javascript:;" @click="changeCity('广州')">广州</a>
<a href="javascript:;" @click="changeCity('深圳')">深圳</a>
</div>
</div>
<ul class="weather_list">
<li v-for="item in weatherList">
<div class="info_type"><span class="iconfont">{{ item.type }}</span></div>
<div class="info_temp">
<b>{{ item.low }}</b>
~
<b>{{ item.high }}</b>
</div>
<div class="info_date"><span>{{item.date}}</span></div>
</li>
</ul>
</div>
<!-- 开发环境版本,包含了有帮助的命令行警告 -->
<script src="vue.js"></script>
<script src="axios.min.js"></script>
<script>
/*
请求地址:http://wthrcdn.etouch.cn/weather_mini
请求方法:get
请求参数:city(城市名)
响应内容:天气信息
1.点击回车
2.查询数据
3.渲染数据
*/
var app = new Vue({
el:"#app",
data:{
city:'',
weatherList:[
// {
// type:"测试晴",
// low:"28",
// high:"30",
// date:"天"
// },
// {
// type:"测试晴",
// low:"28",
// high:"30",
// date:"天"
// }
]
},
methods:{
searchWeather: function(){
console.log("天气查询");
console.log(this.city);
// 调用接口
var that = this;
// axios.get('http://wthrcdn.etouch.cn/weather_mini?city=' + this.city).then(function(){
axios.get('https://mcs.zijieapi.com/list').then(function(response){
// console.log(response);
// console.log(response.data.data.forecast);
// debugger;
console.log(response);
// that.weatherList = response.data.data.forecast;
var testData = [
{
type:"测试晴",
low:"28",
high:"30",
date:"天"
},
{
type:"测试晴",
low:"28",
high:"30",
date:"天"
}
];
that.weatherList = testData;
}).catch(function(err){
})
},//end
changeCity:function(city){
this.city = city;
this.searchWeather();
}
}//end method
});
</script>
</body>
</html>
总结和注意
- 自定义参数可以让代码的 复用性 更高
- methods 中定义的方法内部,可以通过 this 关键字点出其他的方法