目录一、为什么需要误差棒二、准备工作：安装必要的库三、完整代码：带误差棒的柱状图实现四、代码逐行解析：小白也能看懂1. 导入库2. 准备数据：核心中的核心3. 设置坐标轴和柱宽4. 创建图形和轴5. 绘制带误差棒的柱
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