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- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8" />
- <title>Лабараторная работа 1. Задание 3.</title>
- <style>
- tr td{
- width:50px;
- height:50px;
- }
- .blue{
- background-color:blue;
- }
- .red{
- background-color:red;
- }
- </style>
- </head>
- <body>
- <script>
- var n = 10;
- var s;
- var FirstClassCount = 1;
- var SecondClassCount = 0;
- var FirstClass = "blue";
- var SecondClass = "red";
- var answer = parseInt(prompt("Выберите 1 или 2 вариант"));
- document.write("<table>");
- for(i = 0;i < n;i++){
- document.write("<tr>");
- for(j =0; j<n;j++){
- switch(answer){
- default:
- case 1:
- if(j<=i)
- s = FirstClass;
- else
- s = SecondClass;
- break;
- case 2:
- if(FirstClassCount < 2)
- {
- s = FirstClass;
- FirstClassCount++;
- SecondClassCount = 0;
- }
- else{
- s = SecondClass;
- SecondClassCount ++;
- FirstClassCount = 0;
- }
- break;
- }
- document.write("<td class='" + s + "'></td>");
- }
- document.write("</tr>");
- }
- document.write("</table>");
- </script>
- </body>
- </html>
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