echo-2 < < 3; I m a little surprised that the result is-16 the following is the process of my analysis: -2 original code: 1000 0000 0000 0010 -2 inverse code: 1111 1111 1111 1101 -2 complement: 1111 1111 1111 1110 < < result: 1111 ...
-sharpinclude <stdio.h> int main() { short num = -1; 1000 0000 0000 0001() 1111 1111 1111 1110() 1111 1111 1111 1111() , 65535 printf("%u n", num); } question: why is the result not 65535 Thank you ...
-sharpinclude <stdio.h> int main() { short int x = -10; - 1000 0000 0000 1010 - 1111 1111 1111 0101 - 1111 1111 1111 0110 F F F 6 - fffffff6, 4 printf("%x n", x); } I just ...
question 0: java byte b = 0x80; byte b = 0x70; question 1: 0x80 We use the usual binary (no complement) to express that it should be 1000 0000. is the 1 in the binary a symbol bit (because I guess the above problem may be related to the symb...
consider the following code -sharpinclude <stdio.h> -sharpinclude <limits.h> int compare (const void * a, const void * b) { return ( *(int*)a - *(int*)b ); } int main(void) { int a = 1; int b = INT_MIN; printf("%d %d ...
want to understand a problem, that is, the principle of domain name resolution, is there any easy-to-understand explanation? for example, when I use PHPstudy to develop a website, I don t have a DNS service locally, but after configuring a virtual ho...
this problem occurs when using phpstudy, testing under window, session_write_close has no effect, and no specific solution has been found on the Internet. ...
JSSDK sets the upper right corner to share. There are no thumbnails for the links sent on IOS. ImgUrl uses the outer link. The agreement is that all the links shared by https, in IOS are normal, and the thumbnails sent by IOS are not visible. Android is ...
problem description aspsqlserver phplinuxphpsqlserver the environmental background of the problems and what methods you have tried found a lot of centos installation extensions on the Internet to achieve this function, basically Baidu is you copy m...
as mentioned in the question, how should the web page annotation function of the website be realized? (note: it is not similar to screenshot editing of a web page. If the text in the site can be annotated, the user can see it next time after the annotati...