cms网站群,在线查企业信息查询平台,ps网站设计素材,网站开发用什么技术可行性渲染功能#xff1a;
1.提供数据#xff1a; 提供在公共的父组件 App.vue
2.通过父传子#xff0c;将数据传递给TodoMain
3.利用 v-for渲染 添加功能#xff1a;
1.收集表单数据 v-model
2.监听事件#xff08;回车点击都要添加#xff09;
3.子传父#xff0c;讲…渲染功能
1.提供数据 提供在公共的父组件 App.vue
2.通过父传子将数据传递给TodoMain
3.利用 v-for渲染 添加功能
1.收集表单数据 v-model
2.监听事件回车点击都要添加
3.子传父讲任务名称传递给父组件 App.vue
4.进行添加 unshift自己的数据自己负责
5.清空文本框输入的内容
6.对输入的空数据 进行判断 删除功能
1.监听事件监听删除的点击 携带id
2.子传父讲删除的id传递给父组件的App.vue
3.进行删除filter自己的数据 自己负责 底部合计父传子 传list 渲染
清空功能子传父 通知父组件 → 父组件进行更新
持久化存储watch深度监视list的变化 - 往本地存储 -进入页面优先读取本地数据
App.vue
template!-- 主体区域 --section idappTodoHeader addhandleAdd/TodoHeaderTodoMain :listlist handelDelhandelDel/TodoMainTodoFooter :listlist clearhandleClear/TodoFooter/section
/templatescript
import TodoFooter from ./components/TodoFooter.vue;
import TodoHeader from ./components/TodoHeader.vue;
import TodoMain from ./components/TodoMain.vue;
export default {data() {return {list: JSON.parse(localStorage.getItem(list)) || [{ id: 1, name: 打篮球 },{ id: 2, name: 看电影 },{ id: 3, name: 逛街 },],};},components: {TodoFooter,TodoHeader,TodoMain,},methods:{handleAdd(value){this.list.unshift({id : new Date(),name : value})},handelDel(value){this.list this.list.filter(item item.id ! value)},handleClear(){this.list []}},watch:{list:{deep : true,handler(newValue){localStorage.setItem(list,JSON.stringify(newValue))}}}
};
/scriptstyle
/stylecomponents TodoHeader
templateheader classheader!-- 输入框 --h1小黑记事本/h1inputkeyup.enteradd()placeholder请输入任务classnew-todov-model.trimTodoName/button clickadd() classadd添加任务/button/header
/templatescript
export default {data() {return {TodoName: ,};},methods: {add() {if (!this.TodoName) {alert(输入内容不能为空);return}this.$emit(add, this.TodoName);this.TodoName },},
};
/scriptstyle
/style TodoMain
template!-- 列表区域 --section classmainul classtodo-listli classtodo v-for(item,index) in list :keyitem.iddiv classviewspan classindex{{index1}}./span label{{item.name}}/labelbutton classdestroy clickdel(item.id)/button/div/li/ul/section
/templatescript
export default {props:{list:Array},methods:{del(id){this.$emit(handelDel,id)}}
};
/scriptstyle
/style TodoFooter
template!-- 统计和清空 --footer classfooter!-- 统计 --span classtodo-count合 计:strong {{list.length}} /strong/span!-- 清空 --button classclear-completed clickclear清空任务/button/footer
/templatescriptexport default {props:{list : Array},methods:{clear(){this.$emit(clear)}}
};
/scriptstyle
/style
main.js
import Vue from vue
import App from ./App.vue
import ./styles/index.cssVue.config.productionTip falsenew Vue({render: h h(App),
}).$mount(#app)Styles index.css
html,
body {margin: 0;padding: 0;
}
body {background: #fff;
}
button {margin: 0;padding: 0;border: 0;background: none;font-size: 100%;vertical-align: baseline;font-family: inherit;font-weight: inherit;color: inherit;-webkit-appearance: none;appearance: none;-webkit-font-smoothing: antialiased;-moz-osx-font-smoothing: grayscale;
}body {font: 14px Helvetica Neue, Helvetica, Arial, sans-serif;line-height: 1.4em;background: #f5f5f5;color: #4d4d4d;min-width: 230px;max-width: 550px;margin: 0 auto;-webkit-font-smoothing: antialiased;-moz-osx-font-smoothing: grayscale;font-weight: 300;
}:focus {outline: 0;
}.hidden {display: none;
}#app {background: #fff;margin: 180px 0 40px 0;padding: 15px;position: relative;box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.2), 0 25px 50px 0 rgba(0, 0, 0, 0.1);
}
#app .header input {border: 2px solid rgba(175, 47, 47, 0.8);border-radius: 10px;
}
#app .add {position: absolute;right: 15px;top: 15px;height: 68px;width: 140px;text-align: center;background-color: rgba(175, 47, 47, 0.8);color: #fff;cursor: pointer;font-size: 18px;border-radius: 0 10px 10px 0;
}#app input::-webkit-input-placeholder {font-style: italic;font-weight: 300;color: #e6e6e6;
}#app input::-moz-placeholder {font-style: italic;font-weight: 300;color: #e6e6e6;
}#app input::input-placeholder {font-style: italic;font-weight: 300;color: gray;
}#app h1 {position: absolute;top: -120px;width: 100%;left: 50%;transform: translateX(-50%);font-size: 60px;font-weight: 100;text-align: center;color: rgba(175, 47, 47, 0.8);-webkit-text-rendering: optimizeLegibility;-moz-text-rendering: optimizeLegibility;text-rendering: optimizeLegibility;
}.new-todo,
.edit {position: relative;margin: 0;width: 100%;font-size: 24px;font-family: inherit;font-weight: inherit;line-height: 1.4em;border: 0;color: inherit;padding: 6px;box-shadow: inset 0 -1px 5px 0 rgba(0, 0, 0, 0.2);box-sizing: border-box;-webkit-font-smoothing: antialiased;-moz-osx-font-smoothing: grayscale;
}.new-todo {padding: 16px;border: none;background: rgba(0, 0, 0, 0.003);box-shadow: inset 0 -2px 1px rgba(0, 0, 0, 0.03);
}.main {position: relative;z-index: 2;
}.todo-list {margin: 0;padding: 0;list-style: none;overflow: hidden;
}.todo-list li {position: relative;font-size: 24px;height: 60px;box-sizing: border-box;border-bottom: 1px solid #e6e6e6;
}.todo-list li:last-child {border-bottom: none;
}.todo-list .view .index {position: absolute;color: gray;left: 10px;top: 20px;font-size: 22px;
}.todo-list li .toggle {text-align: center;width: 40px;/* auto, since non-WebKit browsers doesnt support input styling */height: auto;position: absolute;top: 0;bottom: 0;margin: auto 0;border: none; /* Mobile Safari */-webkit-appearance: none;appearance: none;
}.todo-list li .toggle {opacity: 0;
}.todo-list li .toggle label {/*Firefox requires # to be escaped - https://bugzilla.mozilla.org/show_bug.cgi?id922433IE and Edge requires *everything* to be escaped to render, so we do that instead of just the # - https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/7157459/*/background-image: url(data:image/svgxml;utf8,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%2240%22%20height%3D%2240%22%20viewBox%3D%22-10%20-18%20100%20135%22%3E%3Ccircle%20cx%3D%2250%22%20cy%3D%2250%22%20r%3D%2250%22%20fill%3D%22none%22%20stroke%3D%22%23ededed%22%20stroke-width%3D%223%22/%3E%3C/svg%3E);background-repeat: no-repeat;background-position: center left;
}.todo-list li .toggle:checked label {background-image: url(data:image/svgxml;utf8,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%2240%22%20height%3D%2240%22%20viewBox%3D%22-10%20-18%20100%20135%22%3E%3Ccircle%20cx%3D%2250%22%20cy%3D%2250%22%20r%3D%2250%22%20fill%3D%22none%22%20stroke%3D%22%23bddad5%22%20stroke-width%3D%223%22/%3E%3Cpath%20fill%3D%22%235dc2af%22%20d%3D%22M72%2025L42%2071%2027%2056l-4%204%2020%2020%2034-52z%22/%3E%3C/svg%3E);
}.todo-list li label {word-break: break-all;padding: 15px 15px 15px 60px;display: block;line-height: 1.2;transition: color 0.4s;
}.todo-list li.completed label {color: #d9d9d9;text-decoration: line-through;
}.todo-list li .destroy {display: none;position: absolute;top: 0;right: 10px;bottom: 0;width: 40px;height: 40px;margin: auto 0;font-size: 30px;color: #cc9a9a;margin-bottom: 11px;transition: color 0.2s ease-out;
}.todo-list li .destroy:hover {color: #af5b5e;
}.todo-list li .destroy:after {content: ×;
}.todo-list li:hover .destroy {display: block;
}.todo-list li .edit {display: none;
}.todo-list li.editing:last-child {margin-bottom: -1px;
}.footer {color: #777;padding: 10px 15px;height: 20px;text-align: center;border-top: 1px solid #e6e6e6;
}.footer:before {content: ;position: absolute;right: 0;bottom: 0;left: 0;height: 50px;overflow: hidden;box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2), 0 8px 0 -3px #f6f6f6,0 9px 1px -3px rgba(0, 0, 0, 0.2), 0 16px 0 -6px #f6f6f6,0 17px 2px -6px rgba(0, 0, 0, 0.2);
}.todo-count {float: left;text-align: left;
}.todo-count strong {font-weight: 300;
}.filters {margin: 0;padding: 0;list-style: none;position: absolute;right: 0;left: 0;
}.filters li {display: inline;
}.filters li a {color: inherit;margin: 3px;padding: 3px 7px;text-decoration: none;border: 1px solid transparent;border-radius: 3px;
}.filters li a:hover {border-color: rgba(175, 47, 47, 0.1);
}.filters li a.selected {border-color: rgba(175, 47, 47, 0.2);
}.clear-completed,
html .clear-completed:active {float: right;position: relative;line-height: 20px;text-decoration: none;cursor: pointer;
}.clear-completed:hover {text-decoration: underline;
}.info {margin: 50px auto 0;color: #bfbfbf;font-size: 15px;text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);text-align: center;
}.info p {line-height: 1;
}.info a {color: inherit;text-decoration: none;font-weight: 400;
}.info a:hover {text-decoration: underline;
}/*Hack to remove background from Mobile Safari.Cant use it globally since it destroys checkboxes in Firefox
*/
media screen and (-webkit-min-device-pixel-ratio: 0) {.toggle-all,.todo-list li .toggle {background: none;}.todo-list li .toggle {height: 40px;}
}media (max-width: 430px) {.footer {height: 50px;}.filters {bottom: 10px;}
}
