#题目: a = 2 b = 5 print("YES") ___ print("NO") #答案: a = 2 b = 5 print("YES") if a == b else print("NO") Use an if statement to print "YES" if either a or b is equal to c. 使用if 语句,使得如果a或b等于c,则输出“YES”。 #题目: a = 2 b = 50 c = 2...
if (prevScrollpos > currentScrollPos) { document.getElementById("navbar").style.top = "0"; } else { document.getElementById("navbar").style.top = "-50px"; } prevScrollpos = currentScrollPos; }
1、PV操作 首先来看P操作(等待信号量): 可以理解为: if ( (s = s - 1) >= 0 ) 继续执行本进程; else 挂起本进程/本进程等待; 然后再来看V操作: 可以理解为: if ( (s = s + 1) >0 ) 不唤醒s的队列中的等待进程; else // (s = s + 1) <= 0 唤醒s的队列中的等待进程; 继续执行本...
// Check whether realloc is able to resize the memory or not if (ptr2 == NULL) { // If reallocation fails printf("Failed. Unable to resize memory"); } else { // If reallocation is sucessful printf("Success. 8 bytes reallocated at address %p \n", ptr2); ptr1 = ptr2; /...
functionget_http_response_code($theURL){$headers=get_headers($theURL);returnsubstr($headers[0],9,3);}if(intval(get_http_response_code('filename.jpg'))<400){echo"file was found";}else{echo"no file found";} It shows nothing on the page. ...
To handle complex conditions that require nested if statements To declare a new variableSubmit Answer » What is an Exercise? Test what you learned in the chapter: C Short Hand If Else by completing 4 relevant exercises. To try more C Exercises please visit our C Exercises page....
C Java class Graph: def __init__(self, size): self.size = size self.edges = [] # For storing edges as (u, v, weight) self.vertex_data = [''] * size # Store vertex names def add_edge(self, u, v, weight): if 0 <= u < self.size and 0 <= v < self.size:...
This example shows how you can use if..else to "open a door" if the user enters the correct code:Example int doorCode = 1337;if (doorCode == 1337) { printf("Correct code.\nThe door is now open.");} else { printf("Wrong code.\nThe door remains closed.");} Try it Yourself...
Thesinh()function is defined in the<cmath>header file. Syntax One of the following: sinh(doublenumber); sinh(floatnumber); Parameter Values ParameterDescription numberRequired. Specifies a number. If the number is an integer type then it will be treated as adouble. ...
❮ C ctype Library Example Check if a character is whitespace: charc=' ';if(isspace(c)){printf("%c is whitespace",c);}else{printf("%c is not whitespace",c);} Try it Yourself » Definition and Usage Theisspace()function returns a non-zero value (equivalent to booleantrue) if a...