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 ...
< H2 > Business scenario < H2 > A large number of json files need to be read and re-parsed and imported into elasticsearch . Json files are saved in different date folders. The size of a single folder is about 80g. The number of json files under the ...
for example, the Win7 system does not support emoji. however, the heavy use of emoji, on my site is a big impact on the reading experience if it s all bean curd. by the way, my website uses Hexo. Thank you! ...
recently installed mysql on linux and searched the Internet for some installation blogs, which are difficult to understand. blog address is as follows: https: blog.csdn.net qq_1623... Question1: what do the following two commands mean respectively?...
like the following code, how do I get the ( - sharpadd_img2 ) outside ajax () inside ajax (). Change () points to this??? ajax () inside console.log (this). The this output here points to ajax, how do I make the this of this output point to ( - sh...
1. Is shuffle built-in when reordering lists in vue animations? shuffle: function () { this.items = _.shuffle(this.items) } 1. What does _. mean ...