"_" (U+FF3F)

_
Name FULLWIDTH LOW LINE
Unicode Versin1.1
Plane(面)基本多言語面 (Basic Multilingual Plane)
Block(ブロック)半角・全角形 (Halfwidth and Fullwidth Forms)
ScriptCommon (Zyyy)
CategoryConnector_Punctuation (Pc)
HTML Entity
_
_
UTF-8 Encoding _ efbcbf
UTF-16 Encoding _ ff3f
UTF-32 Encoding _ 0000ff3f
^ U+FF3E
` U+FF40