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专业的中国邮政编码查询平台，提供全国主要城市和地区的准确邮编信息。支持城市名称、区县名称快速查询，覆盖北京、上海、广州、深圳等一线城市邮编。

全球邮政编码查询平台，提供世界五大洲主要城市的准确邮政编码信息。快速查询国际ZIP CODE，支持城市名称搜索，覆盖美国、英国、日本、德国、法国等主要国家。

Professional text statistics analysis tool providing word count, character count, reading time, speaking time calculation and keyword density analysis. Supports Chinese and English text analysis.

Comprehensive postal code guide covering ZIP codes, postcodes, and address lookup worldwide. Find postal codes for US, UK, Canada, China, Japan, Europe and more with complete FAQ.

Comprehensive directory of post offices across 100 major cities worldwide. Find detailed information about 10,000 post offices with addresses, services, and contact details.

Current page providing navigation and feature introduction for all website pages.

XML format sitemap for search engines to help better index website content.

Search engine crawler guidance file telling search engines which pages can be crawled and which cannot.

• Covers major cities and regions nationwide
• Supports city name and district name search
• Provides accurate postal code information
• Fast response with user-friendly interface

• Covers major cities across five continents
• Supports multi-language city name search
• Provides international standard postal codes
• Organized by continent and country

• Word count and character count
• Reading time and speaking time calculation
• Keyword density analysis
• Paragraph and sentence statistics

北京 16 个行政区主邮政编码、寄件格式示例与查询入口。

浦东、徐汇、静安等热门区域 6 位邮政编码列表及填写技巧。

福田、南山、龙华、宝安等片区邮编汇总，附跨境寄递提示。

覆盖在线查询、客服电话核验与常见错误排查的实用指南。

解析 6 位数字结构、常见前缀与跨境/政务表单填写规范。