import matplotlib.pyplot as plt
x_values = list(range(1, 1001))
y_values = [x**2 for x in x_values]
plt.scatter(x_values, y_values, c='red', edgecolor='none', s=1)
#设置图表标题并给坐标轴加上书签
plt.title('Squares', fontsize=24)
plt.xlabel('Value', fontsize=14)
plt.ylabel('Squares of value', fontsize=14)
#设置每个坐标轴的取值范围
plt.axis([0, 1100, 0, 1100000])
plt.show()
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使用颜色映射:plt.scatter(x_values, y_values, c=y_values, cmap=plt.cm.Blues, edgecolor='none', s=1)
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