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【JS】时间精确计算程序

作者:dezai / 发布于2014/9/20/ 289


	<script language="Javascript">
	<!-- Gracefully hide from old browsers
	function timestamp_class(this_current_time, this_start_time, this_end_time, this_time_difference) {
	 this.this_current_time = this_current_time;
	 this.this_start_time = this_start_time;
	 this.this_end_time = this_end_time;
	 this.this_time_difference = this_time_difference;
	 this.GetCurrentTime = GetCurrentTime;
	 this.StartTiming = StartTiming;
	 this.EndTiming = EndTiming;
	}

	//Get current time from date timestamp
	function GetCurrentTime() {
	var my_current_timestamp;
	 my_current_timestamp = new Date(); //stamp current date & time
	 return my_current_timestamp.getTime();
	 }

	//Stamp current time as start time and reset display textbox
	function StartTiming() {
	 this.this_start_time = GetCurrentTime(); //stamp current time
	 document.TimeDisplayForm.TimeDisplayBox.value = 0; //init textbox display to zero
	 }

	//Stamp current time as stop time, compute elapsed time difference and display in textbox
	function EndTiming() {
	 this.this_end_time = GetCurrentTime(); //stamp current time
	 this.this_time_difference = (this.this_end_time - this.this_start_time) / 1000; //compute elapsed time
	 document.TimeDisplayForm.TimeDisplayBox.value = this.this_time_difference; //set elapsed time in display box
	 }

	var time_object = new timestamp_class(0, 0, 0, 0); //create new time object and initialize it

	//-->
	</script>
	<form>
	 <input type="button" value="开始" onClick="time_object.StartTiming()"; name="StartButton">
	 </form>
	 <form>
	 <input type="button" value="结束" onClick="time_object.EndTiming()"; name="EndButton">
	 </form>
	 <form name="TimeDisplayForm">
	经过了:
	 <input type="text" name="TimeDisplayBox" size="6">
	秒
	 </form>

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