Python Tkinter 按钮/输入方向

Question

I'm trying to set the position of 3 entries/buttons. I know that it needs to be done with anchor and side,however I doesn't really understand how it works. I was trying to get them in one line, the first on the left the second on the center and the third one on the right. I managed to accomplish this,however they are in 3 different lines. Please,could someone explain it to me,how this works? Are the side and anchor values related to the previous ones?

import tkinter
import random
canvas=tkinter.Canvas(width=500,height=500)
canvas.pack()

def symbol(x,y,z,color):
    name=entry1.get()        
    for i in range(1,z+1):
        canvas.create_text(x,y,text='                     '+name,angle=(360/z)*i,fill=color,font='Arial 19')

def draw(coordinates):
    x=coordinates.x
    y=coordinates.y
    z=int(entry2.get())
    color=entry3.get()
    symbol(x,y,z,color)


canvas.bind('<Button-1>',draw)

entry1=tkinter.Entry(bg='red')
entry1.pack(side=tkinter.BOTTOM,anchor=tkinter.W)

entry2=tkinter.Entry(bg='green')
entry2.pack(side=tkinter.BOTTOM,anchor=tkinter.CENTER)

entry3=tkinter.Entry(bg='blue')
entry3.pack(side=tkinter.RIGHT,anchor=tkinter.S)

Answer 1

import tkinter
import random
canvas=tkinter.Canvas(width=500,height=500)
canvas.pack()

def symbol(x,y,z,color):
    name=entry1.get()        
    for i in range(1,z+1):
        canvas.create_text(x,y,text='                     '+name,angle=(360/z)*i,fill=color,font='Arial 19')

def draw(coordinates):
    x=coordinates.x
    y=coordinates.y
    z=int(entry2.get())
    color=entry3.get()
    symbol(x,y,z,color)


canvas.bind('<Button-1>',draw)

entry1=tkinter.Entry(bg='red')
entry1.place(x=0,y=485)

entry2=tkinter.Entry(bg='green')
entry2.place(x=181,y=485)

entry3=tkinter.Entry(bg='blue')
entry3.place(x=360,y=485)