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vue2 .sync 修饰符

**创建 工程：
H:\java_work\java_springboot\vue_study

ctrl按住不放 右键 悬着 powershell

H:\java_work\java_springboot\js_study\Vue2_3入门到实战-配套资料\01-随堂代码素材\day04\准备代码\13-sync修饰符

vue --version
vue create v-sync-demo
cd v-sync-demo
npm run serve

App.vue

<template><div class="app"><button class="logout" @click="isShow = true">退出按钮</button><BaseDialog :visible.sync="isShow"></BaseDialog></div>
</template><script>
import BaseDialog from "./components/BaseDialog.vue";export default {data() {return {isShow: false,};},components: {BaseDialog,},
};
</script><style>
</style>

BaseDialog.vue

<template><div v-show="visible" class="base-dialog-wrap"><div class="base-dialog"><div class="title"><h3>温馨提示：</h3><button @click="close" class="close">x</button></div><div class="content"><p>你确认要退出本系统么？</p></div><div class="footer"><button>确认</button><button>取消</button></div></div></div>
</template><script>
export default {props: {visible: Boolean,},methods: {close() {this.$emit("update:visible", false);},},
};
</script><style scoped>
.base-dialog-wrap {width: 300px;height: 200px;box-shadow: 2px 2px 2px 2px #ccc;position: fixed;left: 50%;top: 50%;transform: translate(-50%, -50%);padding: 0 10px;
}
.base-dialog .title {display: flex;justify-content: space-between;align-items: center;border-bottom: 2px solid #000;
}
.base-dialog .content {margin-top: 38px;
}
.base-dialog .title .close {width: 20px;height: 20px;cursor: pointer;line-height: 10px;
}
.footer {display: flex;justify-content: flex-end;margin-top: 26px;
}
.footer button {width: 80px;height: 40px;
}
.footer button:nth-child(1) {margin-right: 10px;cursor: pointer;
}
</style>