Windows环境下解决Matplotlib中文字体显示问题的详细教程

import matplotlib.pyplot as plt
import matplotlib

# 显示当前matplotlib使用的字体目录
print("字体缓存目录:", matplotlib.get_cachedir())
print("字体配置文件路径:", matplotlib.matplotlib_fname())

# 列出所有可用字体
from matplotlib.font_manager import fontmanager

for font in fontmanager.ttflist:
    if 'simhei' in font.name.lower() or 'ming' in font.name.lower() or 'kai' in font.name.lower():
        print(f"字体名称: {font.name}, 路径: {font.fname}")

import matplotlib.pyplot as plt
import shutil
import matplotlib

# 获取matplotlib字体目录
font_dir = matplotlib.get_data_path() + "\\fonts\\ttf"

# 复制字体文件到matplotlib字体目录（假设字体文件在c:\windows\fonts\simhei.ttf）
shutil.copy("c:\\windows\\fonts\\simhei.ttf", font_dir)

# 清除字体缓存
from matplotlib.font_manager import _rebuild
_rebuild()

import matplotlib.pyplot as plt
from matplotlib.font_manager import fontproperties

# 设置中文字体和解决负号显示问题
plt.rcparams['font.sans-serif'] = ['simhei', 'microsoft yahei', 'fangsong']  # 使用黑体和微软雅黑
plt.rcparams['axes.unicode_minus'] = false  # 解决负号-显示为方块的问题

# 测试绘图
def test_chinese_font():
    plt.figure(figsize=(8, 4))
    plt.text(0.5, 0.5, '你好，世界！hello, 世界！', 
             fontsize=24, ha='center', va='center')
    plt.axis('off')
    plt.title('中文字体显示测试')
    plt.show()

if __name__ == "__main__":
    test_chinese_font()

import matplotlib
print(matplotlib.matplotlib_fname())

font.family         : sans-serif
font.sans-serif     : simhei, microsoft yahei, dejavu sans, bitstream vera sans, ... sans-serif
axes.unicode_minus  : false

import matplotlib.pyplot as plt
from matplotlib.font_manager import _rebuild

_rebuild()  # 清除字体缓存

import matplotlib.pyplot as plt
from matplotlib.font_manager import fontproperties

# 指定字体路径（适用于字体不在系统路径的情况）
font_path = "c:/windows/fonts/simhei.ttf"
chinese_font = fontproperties(fname=font_path, size=12)

# 测试多种字体
def test_multiple_fonts():
    fonts = {
        'simhei': '黑体',
        'microsoft yahei': '微软雅黑',
        'fangsong': '仿宋',
        'kaiti': '楷体',
        'simsun': '宋体'
    }
    
    plt.figure(figsize=(12, 6))
    
    for i, (font_name, chinese_name) in enumerate(fonts.items()):
        try:
            plt.text(0.1, 0.8 - i*0.15, f'{chinese_name}: {font_name}', 
                    fontproperties=fontproperties(family=font_name),
                    fontsize=16)
        except exception as e:
            plt.text(0.1, 0.8 - i*0.15, f'{chinese_name}: {font_name} (加载失败)', 
                    fontsize=16, color='red')
    
    plt.axis('off')
    plt.title('中文字体测试')
    plt.show()

if __name__ == "__main__":
    test_multiple_fonts()

import platform
import matplotlib.pyplot as plt

# 根据操作系统自动选择字体
if platform.system() == 'windows':
    plt.rcparams['font.sans-serif'] = ['microsoft yahei', 'simhei']  # windows
elif platform.system() == 'linux':
    plt.rcparams['font.sans-serif'] = ['wenquanyi zen hei', 'noto sans cjk']  # linux
else:  # macos
    plt.rcparams['font.sans-serif'] = ['pingfang hk', 'arial unicode ms']

import matplotlib.pyplot as plt
import numpy as np

def create_test_chart():
    # 准备数据
    x = np.linspace(0, 10, 100)
    y = np.sin(x)
    
    # 创建图表
    plt.figure(figsize=(10, 6))
    plt.plot(x, y, label="正弦曲线")
    
    # 添加中文标签和标题
    plt.title("matplotlib 中文支持测试图表")
    plt.xlabel("x轴标签示例")
    plt.ylabel("y轴标签示例")
    plt.legend()
    
    # 显示网格
    plt.grid(true)
    
    # 显示图表
    plt.show()

if __name__ == "__main__":
    create_test_chart()

import matplotlib.pyplot as plt
import platform

def auto_configure_chinese():
    system = platform.system()
    
    if system == 'windows':
        # windows系统常用中文字体
        fonts = ['microsoft yahei', 'simhei', 'fangsong', 'kaiti']
    elif system == 'linux':
        # linux系统常用中文字体（需要安装）
        fonts = ['wenquanyi zen hei', 'noto sans cjk', 'droid sans fallback']
    else:  # macos
        # macos系统内置中文字体
        fonts = ['pingfang hk', 'arial unicode ms', 'apple ligothic medium']
    
    # 设置字体
    plt.rcparams['font.sans-serif'] = fonts
    plt.rcparams['axes.unicode_minus'] = false

# 在脚本开始处调用此函数
auto_configure_chinese()

from matplotlib.font_manager import fontproperties, findfont

def get_chinese_font(size=12):
    """获取可用的中文字体"""
    for font_name in ['microsoft yahei', 'simhei', 'fangsong', 'kaiti']:
        try:
            return fontproperties(family=font_name, size=size)
        except exception:
            continue
    
    # 如果找不到任何中文字体，返回默认字体
    return none

def safe_plot():
    font = get_chinese_font()
    
    plt.figure(figsize=(8, 4))
    if font:
        plt.text(0.5, 0.5, '你好，世界！', 
                fontproperties=font, 
                fontsize=24, ha='center', va='center')
    else:
        plt.text(0.5, 0.5, '警告：未找到中文字体', 
                fontsize=24, ha='center', va='center', color='red')
    
    plt.axis('off')
    plt.title('字体检测结果')
    plt.show()

safe_plot()