uniapp踩坑之项目：uniapp修改弹窗组件样式

在components文件夹里创建zz-prompt文件夹，再在下面创建index.vue

<!--通知弹窗index.vue-->
<template>
  <view class="prompt-box" v-if="visible" @touchmove="true">
    <view class="prompt">
      <view class="prompt-top">
        <text class="prompt-title">{
         
  {title}}</text>
        <!-- <input v-if="!isMutipleLine" class="prompt-input" :style="inputStyle" type="text" :placeholder="placeholder" v-model="value">
        <textarea v-else class="prompt-input" :style="inputStyle" type="text" :placeholder="placeholder" v-model="value"></textarea> -->
        <!-- <view class="prompt-context">{
         
  {context}}</view> -->
      </view>
      <slot></slot>
      <view class="prompt-buttons">
        <!-- <button class="prompt-cancle" :style="color: + mainColor" @click="close">取消</button> -->
        <button class="prompt-confirm" :style="background: + mainColor" @click="confirm">关闭</button>
      </view>
    </view>
  </view>
</template>

<script>
export default {
  props: {
    visible: {
      type: Boolean,
      default: false,
      required: true,
    },
    title: {
      type: String,
      default: 提示,
    },
    // context: {
    //   type: String,
    //   default: 内容,
    // },
    placeholder: {
      type: String,
      default: 请输入内容,
    },
    mainColor: {
      type: String,
      default: #e74a39,
    },
    defaultValue: {
      type: String,
      default: ,
    },
    inputStyle: {
      type: String,
      default: ,
    },
    // 是否多行输入的textarea
    isMutipleLine: {
      type: Boolean,
      default: false,
    }
  },
  data () {
    return {
      value: ,
    }
  },
  watch: {
    visible (val) {
      if (val) {
        this.value = this.defaultValue
      }
    }
  },
  mounted () {
    this.value = this.defaultValue === true ?  : this.defaultValue
  },
  methods: {
    close () {
      this.$emit(update:visible, false)
    },
    confirm () {
      this.$emit(confirm, this.value)
      this.value = 
    },
  }
}
</script>

<style scoped>
view,
button,
input {
  box-sizing: border-box;
}

.prompt-box {
  position: fixed;
  left: 0;
  top: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.2);
  transition: opacity 0.2s linear;
}

.prompt {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  width: 600rpx;
  min-height: 300rpx;
  background: white;
  border-radius: 20rpx;
  overflow: hidden;
}

.prompt-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.prompt-title {
  margin: 20rpx 0;
  color: #333;
  font-weight: 900;
  font-size: 32rpx;
}
.prompt-context {
  margin: 30rpx;
  color: #333;
}
.prompt-input {
  width: 520rpx;
  min-height: 72rpx;
  padding: 8rpx 16rpx;
  border: 2rpx solid #ddd;
  border-radius: 8rpx;
  font-size: 28rpx;
  text-align: left;
}

.prompt-buttons {
  display: flex;
  justify-content: center;
  width: 100%;
  box-shadow: 0 0 2rpx 2rpx #eee;
}

.prompt-buttons button:after {
  border-radius: 0;
}

button {
  width: 50%;
  background: white;
  border-radius: 0;
}

.prompt-cancle {
  background: white;
}

.prompt-confirm {
  width: 100%;
  color: white;
}
</style>

在单页面home.vue里引入通知弹窗组件

//html
<!-- 通知弹窗 -->
    <prompt :visible.sync="promptVisible" @confirm="clickPromptConfirm" title="通知标题" mainColor="#3490F9">
      <!-- 这里放入slot内容-->
      <view style=" margin:30rpx;">
        这里是内容
      </view>
    </prompt>
    
//data
import Prompt from @/components/zz-prompt/index.vue // 通知弹窗组件
export default {
    components: {
      Prompt
    },
    data() {
      return {
        ......
        // 控制弹框输入框显示
        promptVisible: false,
      };
    },
    
//js
onLoad: function () {
    let that = this
    that.promptVisible = true   // 通知弹窗打开
}

methods: {    
   /**
   * 关闭按钮
   */
    clickPromptConfirm () {
      this.promptVisible = false  // 通知弹窗关闭
    },
}