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我可以为选择小部件的选项部分设置样式——小部件的底部。但我不知道如何设置选择小部件顶部的样式——类似于文本框的部分。如何为屏幕截图中“品牌”选择的顶部元素设置白色背景颜色。
找到了。
t.Form.stylesheet.pickerContainer.normal.backgroundColor = '#fff';