input

问题 Hi I need to limit the input of TextField javaFX not only for integer but also for numbers between 1 - 19 only.For example I should be allowed to type : "3" ,"19" ... but not: "33" , 44 .. for example : What is the recommended way to make a numeric TextField in JavaFX? but this limits the text field just for integers. 回答1: You can use regex to allow your specific numbers' range(1-19) and add that validation on TextField's TextFormatter's filter . Regex => ([1-9]|1[0-9]) [1-9] Either TextField

问题 Hi I need to limit the input of TextField javaFX not only for integer but also for numbers between 1 - 19 only.For example I should be allowed to type : "3" ,"19" ... but not: "33" , 44 .. for example : What is the recommended way to make a numeric TextField in JavaFX? but this limits the text field just for integers. 回答1: You can use regex to allow your specific numbers' range(1-19) and add that validation on TextField's TextFormatter's filter . Regex => ([1-9]|1[0-9]) [1-9] Either TextField

问题 What is the simplest way to read/input a matrix of numbers into an array in C++? This is the file content (dimensions are unknown): 283 278 284 290 290 286 273 266 266 266 261 252 246 382 380 379 381 382 379 384 387 385 382 376 365 357 285 282 281 279 276 273 272 264 255 255 247 243 237 196 190 186 183 183 180 179 186 191 195 195 188 187 245 237 226 220 221 222 225 228 234 245 252 264 272 283 278 284 290 290 286 273 266 266 266 261 252 246 I've tried a lot of suggested codes, but non of them

问题 I have a pice of code that copy 2 3 divs and the div contains a readonly property. After that I have a button that says to edit when I click on that button this should remove the readonly and the input field is available to edit. My code that doesn't work! my javascript code: I have tried removeAttr , prop('readonly', false) , attr('readonly', false) $("body").on("click", ".btn",function(){ if($(this).is("#edit")){ $(this).parents(".control-group").removeAttr('readonly'); }else if($(this).is(

问题 In Python when I change the value of a variable through raw_input in the terminal it would write a new line stating its new value. I wanted to know if there is a way to avoid that because straight after user's input there is a print function which uses the value received before. In the end the user will get both values: original and modified while for the purpose of my program he only has to see the modified. I use IDLE to write my scripts and then execute them in terminal. Update A simple

问题 In Python when I change the value of a variable through raw_input in the terminal it would write a new line stating its new value. I wanted to know if there is a way to avoid that because straight after user's input there is a print function which uses the value received before. In the end the user will get both values: original and modified while for the purpose of my program he only has to see the modified. I use IDLE to write my scripts and then execute them in terminal. Update A simple

问题 Is it possible, with only CSS, to style an HTML label dependent on its input's state? In my case, I want to style an <input type="checkbox"> based on whether it's checked. I tried putting the label inside the input, but Firefox and Chrome (at least) seems to parse them as siblings, even though they're clearly nested in the input source. And I don't know how to write a CSS rule that can indirect through a for= attribute. Do I need to whip out the Javascript on this one? 回答1: They don't need to

问题 Say you want to ask the user something from the terminal at the end of your program. However, during the program run, the user pressed the enter key. import sys import time print("Hit enter now to see this 'problem'") time.sleep(1) # Hit enter now while the program sleeps! a=input("Do you want to delete something that is really bad to delete? [Y|n]") if a.lower()!="n": print("\nNO! YOU DELETED IT!") Of course, it's stupid to delete stuff with default response, and I don't do that. However, It

问题 Say you want to ask the user something from the terminal at the end of your program. However, during the program run, the user pressed the enter key. import sys import time print("Hit enter now to see this 'problem'") time.sleep(1) # Hit enter now while the program sleeps! a=input("Do you want to delete something that is really bad to delete? [Y|n]") if a.lower()!="n": print("\nNO! YOU DELETED IT!") Of course, it's stupid to delete stuff with default response, and I don't do that. However, It

问题 Using python I am wanting to have the characters printed out as i type, this is easy in java script, but I am not understanding how to use the curses module, this is the code that I tried but it did not work. import curses stdscr = curses.initscr() curses.echo() curses.cbreak() a = raw_input() print a stdscr.refresh() could you please explain how i use this part of the curses module. 回答1: If you just want to get the user input and make the characters printed out as they are typed, there's not