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为什么C语言char类型既不属于unsigned char也不属于signed char？ - 知乎 The three types char, signed char, and unsigned char are collectively called the character types The implementation shall define char to have the same range, representation, and behavior as either signed char or unsigned char
英语文件的签名处，「Signed at」与「on」后面分别填什么？ - 知乎 英语文件的签名处，「Signed at」与「on」后面分别填什么？ Google 一些英语文章中，「Signed at」后面可以跟时间或地点，「on」后面基本是跟日期。 如： 「Signed at TOKYO BAY, … 显示全部 关注者 2 被浏览
c++中的unsigned和signed直接使用的后果? - 知乎 unsigned a和unsigned int a等价。 singed a和singed int a等价。 为被unsigned修饰的变量赋一个负值得到的结果是最大值加上这个负值再+1。 signed b这种情况b的值可以为负，输出负数再正常不过。 sign没加ed不能用来修饰类型。 以上这些知识点，不要问为什么，这是人为规定。学而不思则罔，思而不学则殆。
在c++中signed和int的作用有区别吗？ - 知乎 在一些语法分析弱的编译器上，甚至与 signed signed int 与 signed int signed 与 signed signed signed signed signed int 都是等价类型。 一定要注意 char 没有这种默认等价性。
C语言的signed extend什么意思？ - 知乎 When a signed integer is converted to an integer of greater size, the value is sign-extended Whe…
论文投稿时要求提交Author Agreement，该怎么弄？ - 知乎 We understand that the Corresponding Author is the sole contact for the Editorial process He she is responsible for communicating with the other authors about progress, submissions of revisions and final approval of proofs Signed by all authors as follows: 作者1,作者2, 作者3
noi系列比赛中能否用signed main ()的写法？ - 知乎 noi系列比赛中能否用signed main ()的写法？ 有时候省事会写#define int long long然后把int main换成signed main，想知道这样在算法竞赛里能不能用 （怕爆零所以… 显示全部 关注者 7 被浏览