在一些项目需求中，可能会遇到下面这种场景，3d柱状图来展示百分比，但是又不想引入外部组件，下面就用纯css给大家封装了一个组件

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<template>
	<view class="lui-column-bg" :style="{width:width+'rpx',height:height+'rpx'}" :class="color">
		<view class="lui-inner" :class="colorCLass" :style="{ height: num + '%' }"></view>
		<view class="text-box">
			<view class="label">{{ label }}</view>
			<view class="value">{{ num ? num + "%" : "暂无" }}</view>
		</view>
	</view>
</template>
<script>
	export default {
		name: "Cylinder",
		props: {
			label: {
				type: String,
				default: ""
			},
			num: {
				type: Number,
				default: 50
			}, // 这个就是圆柱中的数据占比 +
			width: {
				type: Number,
				default: 110
			},
			height: {
				type: Number,
				default: 60
			}
		},
		data() {
			return {};
		},
		computed: {
			colorCLass() {
				if (this.num >= 51) {
					return "success-class";
				}
				if (this.num > 30 && this.num <= 50) {
					return "warning-class";
				}
				if (this.num > 0 && this.num <= 30) {
					return "danger-class";
				}
				if (this.num == 0) {
					return "null-class"
				}
			},
			color() {
				if (this.num >= 51) {
					return "success";
				}
				if (this.num > 30 && this.num <= 50) {
					return "warning";
				}
				if (this.num > 0 && this.num <= 30) {
					return "danger";
				}
				if (this.num == 0) {
					return "null"
				}

			},
		},
		mounted() {},
		methods: {}
	};
</script>
<style lang="less" scoped>
	.lui-column-bg {
		position: relative;
		width: 120rpx;
		height: 60rpx;
		margin: 0 10rpx;
		border-left: 2rpx solid red;
		border-right: 2rpx solid red;
		// margin: 100px;
	}

	.lui-column-bg:before {
		position: absolute;
		content: "";
		display: block;
		height: 40rpx;
		width: 100%;
		border-radius: 50%;
		top: -21rpx;
		z-index: 63;
		border: 2rpx solid red;
	}

	.lui-column-bg:after {
		position: absolute;
		content: "";
		display: block;
		height: 60rpx;
		width: 100%;
		border-radius: 50%;
		bottom: -30rpx;
		background-color: #e8e8e8;
	}

	.lui-inner {
		position: absolute;
		bottom: 0;
		width: 100%;
		height: 50%;
		text-align: center;
	}

	.lui-inner::before {
		position: absolute;
		content: "";
		display: block;
		height: 40rpx;
		width: 100%;
		// background-color: #eec967;
		border-radius: 50%;
		top: -21rpx;
		z-index: 11;
	}

	.lui-inner:after {
		position: absolute;
		z-index: 10;
		content: "";
		display: block;
		height: 60rpx;
		width: 100%;
		border-radius: 50%;
		background-color: #ff6868;
		bottom: -28rpx;
	}

	.text-box {
		position: absolute;
		z-index: 20;
		font-size: 14px;
		top: 50%;
		text-align: center;
		width: 100%;

		.label {
			margin-bottom: 10px;
		}

		.value {
			color: #fff;
		}
	}

	.danger-class {
		background-color: #f294a0;

		&::before {
			background-color: #e1677a;
		}

		&::after {
			background-color: #f294a0;
		}
	}

	.success-class {


		background-color: rgb(0, 156, 222);

		&::before {
			background-color: rgb(1, 111, 160, 1);
		}

		&::after {
			background-color: rgb(0, 156, 222);
		}
	}

	.warning-class {
		background-color: rgb(255, 165, 0, 1);

		&::before {
			background-color: rgb(177, 112, 0);
		}

		&::after {
			background-color: rgb(255, 165, 0, 1);
		}
	}

	.danger {
		color: #e1677a !important;
		border-color: #e1677a !important;

		&::before {
			border-color: #e1677a !important;
		}
	}

	.success {

		color: rgb(0, 156, 222) !important;
		border-color: rgb(0, 156, 222) !important;

		&::before {
			border-color: rgb(0, 156, 222) !important;
		}
	}

	.warning {
		.value {
			color: #fff;
		}

		color: rgb(255, 165, 0, 1);
		border-color: rgb(255, 165, 0, 1) !important;

		&::before {
			border-color: rgb(255, 165, 0, 1) !important;
		}
	}

	.null {
		.value {
			color: #000;
		}

	}
</style>

 在需要使用的地方直接引入使用就好了，只传百分比，宽高有需要再传