input

问题 I'm new to JavaScript and I need some help with a simple problem I'm having: I have one empty input field, and two links ( anchors ) with differing values for the title attribute. I'd like to write a small piece of JavaScript that changes the value of the input element to the title of whichever link the user clicks. For example: First link = Prague Second link = Budapest When I click "Budapest" I'd like the value of the input element to change to "Budapest" If needed I can supply a basic

问题 According to the WC docs, if I want to add a new field in the checkout area I should write the following code in functions.php: /* Add the field to the checkout*/ add_action('woocommerce_after_order_notes', 'my_custom_checkout_field'); function my_custom_checkout_field( $checkout ) { echo '<div id="my_custom_checkout_field" class="my_new_field"><h2>' . __('My Field') . '</h2>'; woocommerce_form_field( 'my_field_name', array( 'type' => 'text', 'class' => array('my-field-class form-row-wide'),

问题 a = input() b = input() print(a+b) This can be written as print(input()+input()) and it works. How does it work? Where are the inputs are stored temporarily? 回答1: Premise: input() is just a normal function that blocks until the user types something in. Once that is done, the data is evaluated and returned. With that set aside, your statement is composed of several parts: print(...) is a function call that prints the result of the expression that is between its parentheses. The expression then

问题 while count != 5: input_text = input("Please insert a number of lines of text \n") if count != 5: print("Count is " + str(count)) For the code above, when prompted to supply input, if I paste in a text with multiple line breaks. The code will run for the number of line breaks! I just want it to run ONCE for the entire text. Can anyone help? 回答1: You can use sys.stdin.read() but it will require you to manually send the EOT character: >>> import sys >>> x = sys.stdin.read() the quick brown fox

问题 If I have the data look like this: Michael 30 Tom 35 I can handle it by the following code: #include <iostream> #include <string> int main() { std::string name; int age; while(std::cin >> name >> age) { std::cout << name << " is " << age << " years old." << std::endl; } return 0; } However if my data looks like this: Michael Corleone 30 Tom Hagen 35 I tried using this code, but it only read the first line , the logic seems that it should read all the lines, so I don't know why this attempt

问题 I am reading a file like this: char string[256]; std::ifstream file( "file.txt" ); // open the level file. if ( ! file ) // check if the file loaded fine. { // error } while ( file.getline( string, 256, ' ' ) ) { // handle input } Just for testing purposes, my file is just one line, with a space at the end: 12345 My code first reads the 12345 successfully. But then instead of the loop ending, it reads another string, which seems to be a return/newline. I have saved my file both in gedit and

问题 I am reading a file like this: char string[256]; std::ifstream file( "file.txt" ); // open the level file. if ( ! file ) // check if the file loaded fine. { // error } while ( file.getline( string, 256, ' ' ) ) { // handle input } Just for testing purposes, my file is just one line, with a space at the end: 12345 My code first reads the 12345 successfully. But then instead of the loop ending, it reads another string, which seems to be a return/newline. I have saved my file both in gedit and

问题 this is my first question, I hope I'm doing this right. let's say I have these this file: "simple.py": a=raw_input("your name?") print "Hello",a but with a different script, I want to execute "simple.py" many time and giving the input automatically, that would work like: "everyone.py" run simple.py input=Alice run simple.py input=Bob ... to get "Hello Alice" "Hello Bob" ... I know it's possible to make "everyone.py" run "simple.py" by using os.system, but is there any practical way to do

问题 So, I read a string using cin.getline(str,10,'h') where as you can see I have used a custom delimiter 'h' and want to read a maximum of 9 characters. After doing this, I use cin>>n to read an integer into my int variable n. #include <iostream> using namespace std; int main() { int n; char str[100]; cin.getline(str, 10, 'h'); cout<<str<<'-'<<endl; cout<<"Enter a number:"; cin>>n; cout<<n; return 0; } Suppose I pass the following input 2 3 pl32 which is a '\n' followed by "2 3 pl32". I expect

问题 void read_stdin(trace_t* trace, state_t state, action_t** action_list) { // initial stage int c; while ((c = getchar())!= EOF && c!='#') { if (my_isalpha(c)==LOWERCASE) { state[c-ASCII_CODE_LOWER_A] = '1'; } } printf("%s\n", state); char str[2]; fgets(str, 2, stdin); printf("%s", str); } If '#' is the last character I enter in the getchar() loop, fgets() records the newline character from when I press enter and skips to the print statement immediately (which prints the '\n') I could fix this