一張字體調整好的示例圖：

字體大小就是 fontsize 參數

import matplotlib.pyplot as plt# 代碼中的“...”代表省略的其他參數ax = plt.subplot(111)# 設置刻度字體大小plt.xticks(fontsize=20)plt.yticks(fontsize=20)# 設置坐標標簽字體大小ax.xlabel(..., fontsize=20)ax.ylabel(..., fontsize=20)# 設置圖例字體大小ax.legend(..., fontsize=20)

實戰：

import matplotlib.pyplot as pltimport numpy as npimport matplotlib as mplmpl.rcParams['font.sans-serif'] = ['FangSong']mpl.rcParams['axes.unicode_minus']=Falsex_data = [2.59,2.72,2.90,3.02,3.23,3.40,3.47,3.61,3.98,4.02,4.09,4.15,4.35,4.44,4.50,4.55,4.63,5.00,5.15,5.28,5.38,5.51,5.57,5.62,5.71,5.74,5.85,5.92,6.22,6.34,6.37,6.48,6.62,6.73,6.76,6.81,6.86,6.96,7.02,7.54,7.64,7.80,7.98,8.12,8.24,8.53,8.70,8.88,9.04]y_data = [0.32,0.54,0.61,0.48,0.12,0.01,0.07,0.50,1.32,1.35,1.27,1.05,0.33,0.08,0.02,0.08,0.35,1.74,1.96,1.81,1.39,0.82,0.52,0.38,0.28,0.36,0.80,1.08,2.21,2.34,2.37,2.29,1.85,1.37,1.27,1.07,0.93,0.81,0.94,2.79,2.85,2.69,2.13,1.71,1.54,3.23,5.08,4.86,4.06]x = np.array(x_data)y = np.array(y_data)plt.figure(figsize=(30,30),dpi=400,linewidth = 0.6)# plt.subplot(1,1,1)plt.plot(x,y,'-*g')plt.title("電壓電流的比",fontsize = 60)plt.xlabel('Ug2 (*10V)',fontsize=50)plt.ylabel('Ip (*10**-8A)',fontsize=50)plt.xticks(fontsize=30)plt.yticks(fontsize=30)plt.savefig(r"C:/Users/AsuraDong/Desktop/test.png")# plt.show()

這里直接用代碼片段說明一下如何設置刻度、圖例和坐標標簽字體大小。

import matplotlib.pyplot as plt# 代碼中的“...”代表省略的其他參數ax = plt.subplot(111)# 設置刻度字體大小plt.xticks(fontsize=20)plt.yticks(fontsize=20)# 設置坐標標簽字體大小ax.set_xlabel(..., fontsize=20)ax.set_ylabel(..., fontsize=20)# 設置圖例字體大小ax.legend(..., fontsize=20)

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