Python第三方库Emoji库的使用教程

pip install emoji

import emoji

# 基本用法
print(emoji.emojize(":smiling_face_with_smiling_eyes:")) 
print(emoji.emojize(":thumbs_up:")) 

# 在文本中使用
text = f"任务完成 {emoji.emojize(':check_mark:')}"
print(text)  

😊
👍
任务完成 ✔️

print(emoji.demojize("😊"))  
print(emoji.demojize("👍"))  

# 处理包含表情符号的文本
text_with_emoji = "任务完成 ✅，继续努力 💪"
print(emoji.demojize(text_with_emoji))

:smiling_face_with_smiling_eyes:
:thumbs_up:
任务完成 :check_mark_button:，继续努力 :flexed_biceps:

# 统计文本中的表情符号数量
text = "今天心情很好 😊，工作进展顺利 👍"
count = emoji.emoji_count(text)
print(f"文本中包含 {count} 个表情符号")  

# 检查文本是否包含表情符号
has_emoji = emoji.emoji_count(text) > 1
print(f"文本是否包含表情符号: {has_emoji}")  

文本中包含 2 个表情符号
文本是否包含表情符号: true

emotions = {
    "开心": ":smiling_face_with_smiling_eyes:",
    "大笑": ":grinning_face_with_big_eyes:",
    "爱心": ":red_heart:",
    "思考": ":thinking_face:",
    "惊讶": ":face_with_open_mouth:"
}

for name, emoji_code in emotions.items():
    print(f"{name}: {emoji.emojize(emoji_code)}")

status = {
    "成功": ":check_mark:",
    "失败": ":cross_mark:",
    "警告": ":warning:",
    "信息": ":information:",
    "问题": ":red_question_mark:"
}

for name, emoji_code in status.items():
    print(f"{name}: {emoji.emojize(emoji_code)}")

functions = {
    "搜索": ":magnifying_glass_tilted_left:",
    "设置": ":gear:",
    "主页": ":house:",
    "邮件": ":envelope:",
    "电话": ":telephone:"
}

for name, emoji_code in functions.items():
    print(f"{name}: {emoji.emojize(emoji_code)}")

import emoji
from datetime import datetime

def log_with_emoji(level, message):
    level_emojis = {
        "info": ":information:",
        "warning": ":warning:",
        "error": ":cross_mark:",
        "success": ":check_mark:"
    }
    
    timestamp = datetime.now().strftime("%y-%m-%d %h:%m:%s")
    emoji_icon = emoji.emojize(level_emojis.get(level, ""))
    
    return f"[{timestamp}] [{level}] {emoji_icon} {message}"

# 使用示例
print(log_with_emoji("info", "系统启动完成"))
print(log_with_emoji("warning", "内存使用率较高"))
print(log_with_emoji("error", "数据库连接失败"))
print(log_with_emoji("success", "文件上传成功"))

import emoji
from datetime import datetime

def safe_emojize(emoji_code, fallback=none):
    """
    安全地将表情符号代码转换为表情符号
    如果emoji库无法解析，则使用fallback提供的表情符号
    """
    try:
        result = emoji.emojize(emoji_code)
        # 如果转换失败（结果与输入相同），使用fallback
        if result == emoji_code and fallback:
            return fallback
        return result
    except:
        return fallback or emoji_code

def generate_status_report():
    # 使用双重保险机制：先尝试使用emoji库，如果失败则使用直接输入的表情符号
    return f"""
{safe_emojize(':bar_chart:', '📊')} 系统状态报告
{safe_emojize(':check_mark:', '✅')} 服务状态: 正常
{safe_emojize(':chart_with_upwards_trend:', '📈')} cpu使用率: 45%
{safe_emojize(':chart_with_downwards_trend:', '📉')} 内存使用率: 62%
{safe_emojize(':alarm_clock:', '⏰')} 运行时间: 3天12小时
{safe_emojize(':information_source:', 'ℹ️')} 最后更新: {datetime.now().strftime('%y-%m-%d %h:%m:%s')}
"""

print(generate_status_report())

import emoji

# ==================== 1. 基础使用 ====================
print("=== 1. 基础使用 ===")

# 1.1 通过名称获取表情符号
print("1.1 通过名称获取表情符号:")
print(f"搜索图标: {emoji.emojize(':magnifying_glass_tilted_left:')}")  # 🔍
print(f"笔记图标: {emoji.emojize(':memo:')}")  # 📝
print(f"笑脸: {emoji.emojize(':smiling_face_with_smiling_eyes:')}")  # 😄

# 1.2 在文本中使用表情符号
print("\n1.2 在文本中使用表情符号:")
query = "python编程"
formatted_text = f"{emoji.emojize(':magnifying_glass_tilted_left:')} 搜索查询: {query}"
print(formatted_text)

# ==================== 2. 常用表情符号分类 ====================
print("\n=== 2. 常用表情符号分类 ===")

# 2.1 搜索与信息类
print("\n2.1 搜索与信息类:")
# 使用直接输入的表情符号作为后备方案
search_icons = {
    "搜索": ("🔍", ":magnifying_glass_tilted_left:"),
    "新闻": ("📰", ":newspaper:"),
    "链接": ("🔗", ":link:"),
    "信息": ("ℹ️", ":information_source:"),
    "警告": ("⚠️", ":warning:"),
    "问题": ("❓", ":question:")
}
for name, (direct, name_code) in search_icons.items():
    # 尝试使用emoji库，如果失败则使用直接输入的表情符号
    try:
        emoji_result = emoji.emojize(name_code)
        if emoji_result == name_code:  # 如果没有转换，使用直接输入的
            emoji_result = direct
    except:
        emoji_result = direct
    print(f"{name}: {emoji_result}")

# 2.2 时间与日期类
print("\n2.2 时间与日期类:")
time_icons = {
    "时钟": ("🕐", ":clock:"),
    "日历": ("📅", ":calendar:"),
    "闹钟": ("⏰", ":alarm_clock:"),
    "沙漏": ("⏳", ":hourglass:"),
    "秒表": ("⏱️", ":stopwatch:")
}
for name, (direct, name_code) in time_icons.items():
    try:
        emoji_result = emoji.emojize(name_code)
        if emoji_result == name_code:
            emoji_result = direct
    except:
        emoji_result = direct
    print(f"{name}: {emoji_result}")

# 2.3 数据与图表类
print("\n2.3 数据与图表类:")
data_icons = {
    "图表": ("📊", ":bar_chart:"),
    "增长": ("📈", ":chart_with_upwards_trend:"),
    "下降": ("📉", ":chart_with_downwards_trend:"),
    "统计": ("📋", ":clipboard:"),
    "文件": ("📄", ":page_facing_up:")
}
for name, (direct, name_code) in data_icons.items():
    try:
        emoji_result = emoji.emojize(name_code)
        if emoji_result == name_code:
            emoji_result = direct
    except:
        emoji_result = direct
    print(f"{name}: {emoji_result}")

# 2.4 状态与操作类
print("\n2.4 状态与操作类:")
status_icons = {
    "成功": ("✅", ":check_mark:"),
    "错误": ("❌", ":cross_mark:"),
    "警告": ("⚠️", ":warning:"),
    "信息": ("ℹ️", ":information_source:"),
    "加载": ("⏳", ":hourglass_not_done:"),
    "完成": ("🏁", ":checkered_flag:")
}
for name, (direct, name_code) in status_icons.items():
    try:
        emoji_result = emoji.emojize(name_code)
        if emoji_result == name_code:
            emoji_result = direct
    except:
        emoji_result = direct
    print(f"{name}: {emoji_result}")

# ==================== 3. 高级功能 ====================
print("\n=== 3. 高级功能 ===")

# 3.1 反向解析 - 将表情符号转换为名称
print("\n3.1 反向解析:")
text_with_emojis = "🔍 搜索 📝 笔记 ✅ 完成"
print(f"原始文本: {text_with_emojis}")
print(f"解析后: {emoji.demojize(text_with_emojis)}")

# 3.2 获取所有表情符号列表
print("\n3.2 获取特定表情符号列表:")
print("所有笑脸类表情符号:")
# 使用emoji_list获取包含特定表情符号的文本列表
smileys = emoji.emoji_list(emoji.emojize(':smiling_face_with_smiling_eyes:'))
print(f"找到 {len(smileys)} 个笑脸类表情符号")

# 3.3 检查文本中是否包含表情符号
print("\n3.3 检查文本中是否包含表情符号:")
text1 = "这是一个普通文本"
text2 = "这是一个包含😊表情的文本"
print(f"'{text1}' 包含表情符号: {emoji.emoji_count(text1) > 0}")
print(f"'{text2}' 包含表情符号: {emoji.emoji_count(text2) > 0}")
print(f"'{text2}' 包含 {emoji.emoji_count(text2)} 个表情符号")

# ==================== 4. 实际应用示例 ====================
print("\n=== 4. 实际应用示例 ===")

# 4.1 模拟搜索结果格式化
print("\n4.1 模拟搜索结果格式化:")
def format_search_result(title, content, url):
    # 使用直接输入的表情符号确保兼容性
    return f"""
🔍 {title}
📄 {content[:50]}...
🔗 {url}
"""

search_result = format_search_result(
    "python编程入门教程", 
    "python是一种广泛使用的高级编程语言，具有简洁易读的语法", 
    "https://example.com/python-tutorial"
)
print(search_result)

# 4.2 模拟日志记录
print("\n4.2 模拟日志记录:")
def log_message(level, message):
    # 使用直接输入的表情符号确保兼容性
    level_icons = {
        "info": "ℹ️",
        "warning": "⚠️",
        "error": "❌",
        "success": "✅"
    }
    icon = level_icons.get(level, "ℹ️")
    return f"[{level}] {icon} {message}"

print(log_message("info", "系统启动完成"))
print(log_message("warning", "内存使用率较高"))
print(log_message("error", "数据库连接失败"))
print(log_message("success", "文件上传成功"))

# 4.3 模拟状态报告
print("\n4.3 模拟状态报告:")
def create_status_report():
    # 使用直接输入的表情符号确保兼容性
    return f"""
📊 系统状态报告
✅ 服务状态: 正常
📈 cpu使用率: 45%
📉 内存使用率: 62%
🕐 运行时间: 3天12小时
ℹ️ 最后更新: 🕐 2023-12-26 15:30
"""

print(create_status_report())

# ==================== 5. 直接使用表情符号（无需emoji库）====================
print("\n=== 5. 直接使用表情符号（无需emoji库） ===")
print("在某些情况下，可以直接在代码中输入表情符号:")
direct_emoji_text = """
🔍 搜索功能
📝 笔记功能
📊 数据分析
⏰ 时间管理
✅ 任务完成
❌ 错误处理
"""
print(direct_emoji_text)

# ==================== 6. 常见表情符号名称对照表 ====================
print("\n=== 6. 常见表情符号名称对照表 ===")
common_emojis = {
    "🔍": ":magnifying_glass_tilted_left:",
    "📝": ":memo:",
    "😄": ":smiling_face_with_smiling_eyes:",
    "📰": ":newspaper:",
    "🔗": ":link:",
    "ℹ️": ":information_source:",
    "⚠️": ":warning:",
    "❓": ":question:",
    "📅": ":calendar:",
    "⏰": ":alarm_clock:",
    "📊": ":bar_chart:",
    "📈": ":chart_with_upwards_trend:",
    "📉": ":chart_with_downwards_trend:",
    "📋": ":clipboard:",
    "📄": ":page_facing_up:",
    "✅": ":check_mark:",
    "❌": ":cross_mark:",
    "⏳": ":hourglass_not_done:",
    "🏁": ":checkered_flag:"
}

print("表情符号与名称对照:")
for symbol, name in common_emojis.items():
    print(f"{symbol} -> {name}")