nil pointer

常見(jiàn)例句

雙語(yǔ)例句

• Normal control characters (characters with values less than 32): This especially includes character 0, traditionally called NUL; I call it NIL to distinguish it from C's NULL pointer.
  常規(guī)控制字符（字符值小于32）：還特別包括字符0，傳統(tǒng)上稱(chēng)做 NUL；我把它稱(chēng)為 NIL 以區(qū)別于 C 語(yǔ)言中的 NULL 指針。
返回 nil pointer