如何在y2labels中根据小数点对齐？

import numpy as np

# 假设y2轴的范围为0到1，需要显示5个标签
y2_min = 0
y2_max = 1
num_labels = 5

# 计算每个间隔的大小
interval = (y2_max - y2_min) / (num_labels - 1)

# 遍历每个间隔，确定标签的格式化字符串
labels = []
for i in range(num_labels):
    value = y2_min + i * interval
    decimal_places = len(str(value).split('.')[1])  # 获取小数点后的位数
    format_string = "{:." + str(decimal_places) + "f}"  # 构造格式化字符串
    label = format_string.format(value)
    labels.append(label)

# 打印结果
print(labels)