=
Проверка устного счета
<html> <head> <title>Проверка устного счета</title> <script languge="JavaScript"> <!-- var max_value = 0 var operand1 = 0 var operand2 = 0 var result = 0 var flag = 0 var sign = "+" var input = "" var v_date = new Date() var number = v_date.getTime() function init(factor) { var today = new Date() return (factor*today.getTime()/1000)%30000 } //Инициализировать счетчик случайных чисел. IX = init(2) IY = init(3) IZ = init(4) //2, 3, and 4 below were arbitrarily chosen. //They put some distance between the initial values of IX, IY, and IZ //Датчик случайных чисел. function random() { IX = Math.floor(171 * IX % 30269) IY = Math.floor(172 * IY % 30307) IZ = Math.floor(170 * IZ % 30323) return ( IX/30269.0 + IY/30307.0 + IZ/30323.0 ) % 1.0 } //Выбрать сложение или вычитание. function set_sign(x) { if( x == "+") { flag = 0 sign = "+" } if( x == "-") { flag = 1 sign = "-" } return true } // Определить первый операнд. function f_operand() { operand1 = random()*max_value return parseInt(operand1) } // Определить второй операнд. function s_operand() { if(flag == 0) { operand2 = random() * (max_value-operand1) } else { operand2 = random() * operand1 } return parseInt(operand2) } // Проверить введенные данные. function input_sign(x) { if(x == 10) { if(flag == 0) { if( operand1+operand2 == parseInt(input)) { window.document.test.r0.value = "Молодец!" } else { window.document.test.r0.value = "Думай!?" window.document.test.input = ""; input = "" } } if(flag == 1) { if( operand1-operand2 == parseInt(input) ) { window.document.test.r0.value ="__-__-_р!" } else { window.document.test.r0.value = "Думай!?" window.document.test.input = ""; input = "" } } return true } input += x window.document.test.result.value = input return true } // Генерация варианта. function main_calc() { operand1 = f_operand() window.document.test.op1.value = operand1 operand2 = s_operand() window.document.test.op2.value = operand2 window.document.test.s_sign.value = sign input = "" window.document.test.input = "" window.document.test.r0.value = " ??? " return true } // --> </script> </head> <body> <form name=""test"> <table> <tr> <td><input name="i10" type="button" value="0-10" onClick="max_value=10"></td> <td><input name="i20" type="button" value="0-20" onClick="max_value=20"></td> <td><input name="i100" type="button" value="0-100" onClick="max_value=100"></td> <td><input name="i+" type="button" value=" + " onClick="set_sign('+')"></td> <td><input name="i-" type="button" value=" - " onClick="set_sign('-')"></td> </tr> </table> <table> <tr> <td><input name="op1" size="2" maxlength="2"></td> <td><input name="s_sign" size="2" maxlength="1"></td> <td><input name="op2" size="2" maxlength="2"></td> <td>=</td> <td><input name="result" size="3" maxlength="3"></td> <td><input name="award" type="button" value=" ? " onClick="main_calc()"> <td><input name="r0" value=" ??? "> </tr> </table> <table> <tr> <td><input name="b1" type="button" value=" 1 " onClick="input_sign('1')"></td> <td><input name="b2" type="button" value=" 2 " onClick="input_sign('2')"></td> <td><input name="b3" type="button" value=" 3 " onClick="input_sign('3')"></td> </tr> <tr> <td><input name="b4" type="button" value=" 4 " onClick="input_sign('4')"></td> <td><input name="b5" type="button" value=" 5 " onClick="input_sign('5')"></td> <td><input name="b6" type="button" value=" 6 " onClick="input_sign('6')"></td> </tr> <tr> <td><input name="b7" type="button" value=" 7 " onClick="input_sign('7')"></td> <td><input name="b8" type="button" value=" 8 " onClick="input_sign('8')"></td> <td><input name="b9" type="button" value=" 9 " onClick="input_sign('9')"></td> </tr> <tr> <td><input name="b0" type="button" value=" 0 " onClick="input_sign('0')"></td> <td colspan=2><input name="bs" type="button" value="OK" onClick="input_sign('10')"> </td></tr> </table> </form> <!--s_links--><!--323882778976--><!--/s_links--></body> <!-- Mirrored from gramsk.ru/sites/scriptic/razn/rogation.htm by HTTrack Website Copier/3.x [XR&CO'2014], Tue, 16 Jan 2024 11:59:40 GMT --> </html>