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pip install dearpygui

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# -*- coding: utf-8 -*-
#********************************************************************************
#Copyright © 2023 Wcq
#File Name: test_unicode.py
#Author: Wcq
#Email: wcq-062821@163.com
#Created: 2023-11-29 10:26:56 
#Last Update: 2023-11-29 10:37:40
#         By: Wcq
#Description: 
#********************************************************************************
import dearpygui.dearpygui as dpg
import re
dpg.create_context()
print(f"Ω Unicode : 0x{ord('Ω'):04x}")
print(f"ant Unicode : 0x{ord('🐜'):06x}")

def extract_chinese_text(file_path):
    ''' 从文件中提取出中文和部分特殊字符 '''
    print('file_path :', file_path)
    with open(file_path, 'r', encoding='utf-8') as file:
        content = file.read()
    # chinese_text = re.findall('[\u4e00-\u9fa5]+', content)   # chinese unicode
    # chinese_text += re.findall('[\u0300-\u0400]+', content)  # special symbol
    chinese_text = re.findall('[\u0300-\uffff]+', content)     # all
    chinese_list = set()
    for string in chinese_text:
        for c in string:
            chinese_list.add(c)
    chinese_list = list(chinese_list)
    chinese_string = ''.join(chinese_list)
    return chinese_string

def add_custom_chinese_unicode(s):
    '''
    由于加载所有中文Unicode 会很慢, 所以直接只加载需要的即可
    '''
    unicode_list = set()
    for c in s:
        unicode_list.add(ord(c))
    unicode_list = list(unicode_list)
    dpg.add_font_chars(unicode_list)

with dpg.font_registry():
    with dpg.font("/home/wcq/.local/share/fonts/sarasa-mono-sc-regular.ttf", 20) as default_font:
        add_custom_chinese_unicode(extract_chinese_text(__file__))
        dpg.bind_font(default_font)

dpg.create_viewport(title='Custom Title', width=800, height=600)
with dpg.window(label='测试中文 Ω', width=800, height=300):
    dpg.add_text(label='test' , default_value='测试 θ \u03a9')
dpg.setup_dearpygui()
dpg.show_viewport()
dpg.start_dearpygui()
dpg.destroy_context()

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        dpg.add_font_range_hint(dpg.mvFontRangeHint_Default)
        dpg.add_font_range_hint(dpg.mvFontRangeHint_Chinese_Simplified_Common)
        # dpg.add_font_range_hint(dpg.mvFontRangeHint_Chinese_Full)   # 这个会影响启动速度
        dpg.bind_font(default_font)