# JS求平均值的小例子

<asp:TextBox ID=”tblmyd11″ Field=”lmyd11″ TableName=”gqls_sy” EnabledAction=”(12.*)”  CssClass=”erp_textbox_short” runat=”server” self=”ydpj”></asp:TextBox>

JS部分：

/********************硬度HRC平均值**************************/
\$(function() {
\$(“[self=’ydpj’]”).blur(function() { Getlmpj(“11”, “21”, “31”, “41”); });
\$(“[self=’ydpj’]”).blur(function() { Getlmpj(“12”, “22”, “32”, “42”); });
\$(“[self=’ydpj’]”).blur(function() { Getlmpj(“13”, “23”, “33”, “43”); });
\$(“[self=’ydpj’]”).blur(function() { Getlmpj(“14”, “24”, “34”, “44”); });
//螺母
function Getlmpj(one, two, three, four) {
var avg = 0;
var num1 = ChangeFloat(\$(“input[id*=tblmyd” one “]”).val());
var num2 = ChangeFloat(\$(“input[id*=tblmyd” two “]”).val());
var num3 = ChangeFloat(\$(“input[id*=tblmyd” three “]”).val());
if (num1 != 0 && num2 != 0 && num3 != 0) {
avg = (num1 num2 num3) / 3;
\$(“input[id*=tblmyd” four “]”).val(RoundValue(avg, 0.1, 1));
}
else {
\$(“input[id*=tblmyd” four “]”).val(“”);
}
}
});
function ChangeFloat(data) {
if (data != null && data != “”) {
return parseFloat(data);
}
else {
return 0;
}
}