如何更改 Tkinter 标签字体大小
本教程指南介绍如何更改 Tkinter 标签字体大小。我们创建两个按钮 Increase 和 Decrease 来增大/减小 Tkinter 标签的字体大小。
更改 Tkinter 标签字体大小
import tkinter as tk
import tkinter.font as tkFont
app = tk.Tk()
fontStyle = tkFont.Font(family="Lucida Grande", size=20)
labelExample = tk.Label(app, text="20", font=fontStyle)
def increase_label_font():
fontsize = fontStyle['size']
labelExample['text'] = fontsize+2
fontStyle.configure(size=fontsize+2)
def decrease_label_font():
fontsize = fontStyle['size']
labelExample['text'] = fontsize-2
fontStyle.configure(size=fontsize-2)
buttonExample1 = tk.Button(app, text="Increase", width=30,
command=increase_label_font)
buttonExample2 = tk.Button(app, text="Decrease", width=30,
command=decrease_label_font)
buttonExample1.pack(side=tk.LEFT)
buttonExample2.pack(side=tk.LEFT)
labelExample.pack(side=tk.RIGHT)
app.mainloop()
fontStyle = tkFont.Font(family="Lucida Grande", size=20)
我们指定字体是 Lucida Grande 系列，字体大小为 20，并且将该字体赋给标签 labelExample。
def increase_label_font():
fontsize = fontStyle['size']
labelExample['text'] = fontsize+2
fontStyle.configure(size=fontsize+2)
字体大小用 tkinter.font.configure() 方法更新。如从 gif 动画中看到的，使用该特定字体的控件将会自动更新。
labelExample['text'] = fontsize+2
我们还将标签文本更新为与字体大小相同，以使动画更加直观。
更改 Tkinter 标签字体系列 font-family
我们还将介绍如何通过单击按钮来更改 Tkinter 标签字体系列。
import tkinter as tk
import tkinter.font as tkFont
app = tk.Tk()
fontfamilylist = list(tkFont.families())
fontindex = 0
fontStyle = tkFont.Font(family=fontfamilylist[fontindex])
labelExample = tk.Label(app, text=fontfamilylist[fontindex], font=fontStyle)
def increase_label_font():
global fontindex
fontindex = fontindex + 1
labelExample.configure(font=fontfamilylist[fontindex], text=fontfamilylist[fontindex])
buttonExample1 = tk.Button(app, text="Change Font", width=30,
command=increase_label_font)
buttonExample1.pack(side=tk.LEFT)
labelExample.pack(side=tk.RIGHT)
app.mainloop()
fontfamilylist = list(tkFont.families())
它将获取可用的 Tkinter 字体系列列表。
labelExample.configure(font=fontfamilylist[fontindex], text=fontfamilylist[fontindex])
labelExample 的 font 属性将更改为 font.families 列表中的下一个字体，并且标签文本也将更新为字体名称。
Founder of DelftStack.com. Jinku has worked in the robotics and automotive industries for over 8 years. He sharpened his coding skills when he needed to do the automatic testing, data collection from remote servers and report creation from the endurance test. He is from an electrical/electronics engineering background but has expanded his interest to embedded electronics, embedded programming and front-/back-end programming.
LinkedIn