null adj. 1.无效力的,无束缚力的。 2.无效的,无用的,无益的;无价值的。 3.没特征[个性]的,没表情的。 4.〔罕用语〕不存在的,没有的;零(位)的;空的。 n. 【数学】零,零位;空;【无线电】零讯号,微弱讯号。 a null indicator 零示器;零位指示器。 the null method 衡消法。 null and void 【律】无效;失效(This check is null and void. 本支票无效)。 vt. 使无效。
And stores them in the char string line . it appends a null character so that line contains a properly null - terminated c string 它附加一个null字符以使字符串行包含一个正确的以空值终止的c字符串。
This constructor copies the sequence of unicode characters at the specified pointer until a null character hexadecimal 0x00 is reached 此构造函数复制位于指定指针处的unicode字符序列,直到到达空字符(十六进制的0x00 )为止。
If the function succeeds , the return value is the length , in tchars , of the string copied to the buffer , not including the terminating null character 这个函数不会拷贝最后一个0 ,所以需要初始化一下,或者根据长度自己写最后一个0
That means when these functions see a null character , they cease whatever operation they are performing usually some sort of copy and return 偏差的另一个源(特别隐秘的一种)是在外部现象中,即攻击者有一些控制,或者有机会进行复制。
The function stops reading the input string at the first character that it cannot recognize as part of a number . this character may be the null character ( ' 0 ' ) terminating the string 在碰到第一个无法辨别为数字的字符时,它会停止。这个字符可能是字符串结束符' 0 '
The process of inserting meaningless characters , such as null characters , zeros , or spaces , into the unused portions of a field , record , or fixed - length block of data 一种插入一些无意义字符的处理方法。例如,在一个字段、记录或固定长度数据块的不用部分插入空字符、零或空格。
No os functionality is needed ; the implementation of this function simply walks down the string , incrementing a counter for each character , until it reaches the null character that terminates the string 不需要操作系统功能;该函数的实现只是遍历字符串,并对每个字符增加计数器,直到到达终止该字符串的终止null字符。