python Streamlit 库示例

# Pycharm V2021 
# 解释器 Python 3.7 D:\ProgramData\Anaconda3\python.exe
# -*- coding:utf-8
# author :RainChang 
# 2021/10/28,13:42
# 操作说明：http://cw.hubwiz.com/card/c/streamlit-manual/
# 示例来源：https://blog.csdn.net/qq_44747847/article/details/116462041?spm=1001.2101.3001.6650.5&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7Edefault-5.no_search_link&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7Edefault-5.no_search_link
# 在Terminal 运行Streamlit run  filename.py


import time

import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
import streamlit as st
from PIL import Image
import altair as alt

st.title("This is my first app")
st.write("hello")
st.write("Here's our first attempt at using data to create a table:")

df = pd.DataFrame({
    'first column': [5, 6, 7, 8],
    'second column': [50, 60, 70, 80]
})

st.write(pd.DataFrame({
    'first column': [1, 2, 3, 4],
    'second column': [10, 20, 30, 40]
}))
# 其中df定义的位置，并不影响最后的输出位置！
# df

# 绘制图表
# 折线图
chart_data = pd.DataFrame(
    np.random.randn(20, 3),
    columns=['a', 'b', 'c'])

st.line_chart(chart_data)

# 区域图的可视化
# “streamlit”中的“area_chart”方法显示区域图，方法原型和折线图用到的方法一致，所以这里就不做过多的赘述，例如下面的代码

chart_data =