📄 13-7.html
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<head><title>Colored Frames</title><script>function setcolor(w) { // Generate a random color. var r = Math.floor((Math.random() * 256)).toString(16); var g = Math.floor((Math.random() * 256)).toString(16); var b = Math.floor((Math.random() * 256)).toString(16); var colorString = "#" + r + g + b; // Set the frame background to the random color. w.document.write("<body bgcolor='" + colorString + "'></body>"); w.document.close(); // Schedule another call to this method in one second. // Since we call the setTimeout() method of the frame, the string // will be executed in that context, so we must prefix properties // of the top-level window with "parent." w.setTimeout('parent.setcolor(parent.' + w.name + ')', 1000); // We could also have done the same thing more simply like this. // setTimeout('setcolor(' + w.name + ')', 1000);}</script></head><frameset rows="33%,33%,34%" cols="33%,33%,34%" onload="for(var i = 0; i < 9; i++) setcolor(frames[i]);"><frame name="f1" src="javascript:''"><frame name="f2" src="javascript:''"><frame name="f3" src="javascript:''"><frame name="f4" src="javascript:''"><frame name="f5" src="javascript:''"><frame name="f6" src="javascript:''"><frame name="f7" src="javascript:''"><frame name="f8" src="javascript:''"><frame name="f9" src="javascript:''"></frameset>⌨️ 快捷键说明
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