In tkinter, the geometry managers – `pack()`, `grid()`, and `place()` – are used to arrange and position widgets within a window. These geometry management methods in tkinter provide different approaches for
What your e-mail address?用高效液相色谱法单标法测定茶饮料中的苋菜红。配置标准溶液浓度为1μg/mL，进样后，测得峰面积为495.6，现将30mL饮料样品经过预处理浓缩为1mL待测液，进样后测得峰面积为853.0，则该茶饮料中苋菜红的原含量为（）μg/mL。
importtkinterastkfromPILimportImage, ImageTkfromtimeimporttime, sleepfromrandomimportchoice, uniform, randintfrommathimportsin, cos, radians# 模拟重力GRAVITY =0.05# 颜色选项(随机或者按顺序)colors = ['red','blue','yellow','white','green','orange','purple','seagreen','indigo','cornflowerblue']'...