代码如下：

from tkinter import *
 
master = Tk()

renyuan = ["唐僧", "沙僧", "悟空", "八戒"]

def r_change():
    rec = ""
    ci = 0
    for el in vars:
        rec += el.get() +"、"
        ci += 1

    rec = "九点" + rec +"离岗"

    for i in range(ci):
        rec = rec.replace("、离岗", "离岗").replace("、、", "、").replace("九点、", "九点")
        
    print(rec)


vars = []
for ele in renyuan:
    print(ele)
    
    var = StringVar(value="")
    #print(var.get())

    vars.append(var)


    c = Checkbutton(master,
                    text=ele,
                    variable=var,
                    onvalue = "",
                    offvalue = ele +"、",
                    #command=e_change
                    )
    c.pack()

btn = Button(master, text= "提交", command = r_change).pack()

mainloop()

运行如下：

如图所示，选项是被勾选的。如何去掉勾选呢？