pip install streamlit

# app.py
import streamlit as st

st.title("Hello Streamlit!")
st.write("這是一個(gè)簡(jiǎn)單的Streamlit應(yīng)用程序。")

st.title("這是一個(gè)標(biāo)題")
st.header("這是一個(gè)頭部")
st.subheader("這是一個(gè)子標(biāo)題")
st.text("這是一段文本")

from PIL import Image

image = Image.open("example.jpg")
st.image(image, caption="這是一張圖片", use_column_width=True)

import pandas as pd

data = pd.DataFrame({"列1": [1, 2, 3], "列2": [4, 5, 6]})
st.dataframe(data)

if st.button("點(diǎn)擊我"):
    st.write("按鈕被點(diǎn)擊了！")

name = st.text_input("請(qǐng)輸入你的名字")
st.write("你輸入的名字是：", name)

option = st.selectbox("選擇一個(gè)選項(xiàng)", ["選項(xiàng)1", "選項(xiàng)2", "選項(xiàng)3"])
st.write("你選擇的是：", option)

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 10, 100)
y = np.sin(x)

 st.line_chart(list(zip(x, y)))

# Matplotlib
fig, ax = plt.subplots()
ax.plot(x, y)
st.pyplot(fig)
     
# Plotly
import plotly.express as px
fig = px.scatter(x=x, y=y, title="Scatter Plot")
st.plotly_chart(fig)

# 創(chuàng)建一個(gè)自定義主題
custom_theme = {
    "primaryColor": "#ff6347",
    "backgroundColor": "#f0f0f0",
    "secondaryBackgroundColor": "#d3d3d3",
    "textColor": "#121212",
    "font": "sans serif"
}
st.set_page_config(page_title="Custom Theme Example", page_icon="??", layout="wide", initial_sidebar_state="collapsed")
st.set_theme(custom_theme)

st.markdown("## 這是Markdown標(biāo)題")
st.markdown("這是 **加粗** 的文本")

# app.py
import streamlit as st

def main():
    st.title("多頁(yè)面應(yīng)用程序示例")
    page = st.sidebar.selectbox("選擇一個(gè)頁(yè)面", ["主頁(yè)", "關(guān)于我們"])

    if page == "主頁(yè)":
        st.write("歡迎來(lái)到主頁(yè)！")
        elif page == "關(guān)于我們":
        st.write("這是關(guān)于我們頁(yè)面。")

if __name__ == "__main__":
    main()

# 使用Streamlit Sharing
streamlit deploy app.py

import numpy as np
import pandas as pd
# 生成示例數(shù)據(jù)
data = pd.DataFrame({
    '日期': pd.date_range('2023-01-01', periods=10, freq='D'),
    '銷售額': np.random.randint(100, 1000, size=10)
})
# 創(chuàng)建儀表盤
st.title("銷售數(shù)據(jù)儀表盤")
st.line_chart(data.set_index('日期'))

# 導(dǎo)入數(shù)據(jù)集
data = pd.read_csv('your_dataset.csv')

# 選擇變量
selected_variable = st.selectbox("選擇一個(gè)變量", data.columns)

# 繪制箱線圖
st.title("箱線圖 - {}".format(selected_variable))
st.box_plot(data[selected_variable])

displayed_data = load_large_dataset().head(100)
st.dataframe(displayed_data)

@st.cache
def expensive_computation():
    # 進(jìn)行一些耗時(shí)的計(jì)算
    return result

result = expensive_computation()
st.write("計(jì)算結(jié)果：", result)

# 使用分頁(yè)加載數(shù)據(jù)
page_number = st.number_input("選擇頁(yè)碼", min_value=1, value=1)
data_subset = load_large_dataset(page_number=page_number)
st.dataframe(data_subset)

# 使用Parquet格式進(jìn)行數(shù)據(jù)存儲(chǔ)
data.to_parquet("large_data.parquet")

# 部署應(yīng)用程序時(shí)啟用HTTPS
streamlit run app.py --server.enableCORS false