用Ajax（javascript、XMLHttpRequest等）技術(shù)實(shí)現(xiàn)：前端頁(yè)面輸入兩個(gè)數(shù)值后端服務(wù)完成兩個(gè)數(shù)值相加在前端頁(yè)面顯示從后端服務(wù)取得的兩個(gè)數(shù)值相加后的結(jié)果
2 回答
慕絲7291255
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<script type="text/javascript">
function AddNumbers()
{
// Create an instance of the HTTP Request Object
var xmlHttp = new XMLHttpRequest();
var value1 = document.getElementById("txtValue1").value;
var value2 = document.getElementById("txtValue2").value;
// Specify HTTP POST so that parameters can be passed in
// request body
xmlHttp.open("POST", "add.aspx", false);
// Send the parameters in CSV format
xmlHttp.send(value1 + "," + value2);
var result = document.getElementById("spanResult");
// Use result of calculation from server
result.innerHTML = xmlHttp.responseText;
}
</script>
...
<form>
<input id="txtValue1"/>
<input id="txtValue2"/>
<input onclick="AddNumbers();"type="button" value="Add"/>
<p>Result:</p>
<span id="spanResult"></span>
</form>- 2 回答
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