echo cpt code

Python sends ICMP echo requesy request Copy Code code as follows: Import socket Import struct def checksum (source_string):sum = 0Countto = (len (source_string)/2) *2Count = 0While CountThisval = Ord (Source_string[count + 1]) *256 + ord (source_string[count))sum = sum + thisvalsum = sum 0xFFFFFFFFCount = Count + 2If Counttosum = sum + ord (Sourc

What is the difference between echo and return in returning ajax results? {Code...} can be used with echo above, but not with return! What is the difference between echo and return in returning ajax results? $.ajax({ ... success: function (data) { addType = "change"; var obj = JSON

+ Why is the echo not a + REST server after the code is sent to the server? I use postman to send a request to our rest api. some parameters are single strings, and one parameter is in the form of vehicletype = 1 + 22 + 8, I have the echo vehicletype value in it, and the output is 1 22 8. if vehicletype =, the echo ve

I usually write about it. echo $data But I see people's code, a lot of them are exit($data) Reply content: I usually write about it.echo $dataBut I see people's code, a lot of them areexit($data) In general, you should use the Echo The function of exit () is to force the termination of the script and use it to o

Python sends icmp echo requesy requestCopy codeThe Code is as follows:Import socketImport struct Def checksum (source_string ):Sum = 0Countid = (len (source_string)/2) * 2Count = 0While count ThisVal = ord (source_string [count + 1]) * 256 + ord (source_string [count])Sum = sum + thisValSum = sum 0 xffffffffCount = count + 2If countTo Sum = sum + ord (source_string [len (source_string)-1])Sum = sum 0 xfff

How does echo not execute in this code, the master gives a recruit

implementing the output codevoidWrite_routine (intSockChar*buf) { while(1) {fgets (buf, Buf_size, stdin); if(!STRCMP (BUF,"q\n") || !STRCMP (BUF,"q\n") {shutdown (sock, SHUT_WR); return; } write (sock, buf, strlen (BUF)); }}at the same time the multi-process server also has shortcomings, each creation of a process represents a large number of operations and memory space consumption, mutual process data exchange is also very troublesome ... So how to fix it, the blog behind me may give an ans