Unverified50% confidenceFactExact time
UTF-8对中文字符采用3字节编码，范围为U+4E00至U+9FFF的CJK统一汉字
1
Sources
50%
Confidence
Long-term
Relevance
7/25/2026
First Seen
Sources
Related Claims
UnverifiedUTF-8是变长编码，ASCII字符只需1字节，中文汉字通常需要3字节83% similarUnverifiedUnicode是字符集标准而非编码方案本身，UTF-8、UTF-16、UTF-32是三种不同的编码实现方式75% similarUnverifiedMySQL中的utf8编码实际上只支持3字节字符，无法存储部分特殊字符（如emoji），而UTF-8 MB4才是真正支持4字节Unicode字符的编码72% similarUnverified亚洲字符（中文/日文）书写笔画密集，建议选EF尖（约0.4mm）；欧美钢笔标注的F尖实际接近国产M尖，写中文易糊字71% similarUnverifiedGB2312标准收录6,763个汉字，Unicode中的CJK统一表意文字超过9万个71% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/612603API
curl https://kongchang.com/api/v1/knowledge/claims/612603MCP
get_claim(id=612603)