date.html

javascript 1.5规范

<P>
<A NAME="1193465"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><A HREF="date.html#1194838"  >setUTCSeconds</A></ztabletext>
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<P>
<A NAME="1193467"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Sets the seconds for a specified date according to universal time.</ztabletext>
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    <TD VALIGN=TOP><A NAME="1193472"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline><A HREF="date.html#1194880"  >setYear</A>
</zcodeline>
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<P>
<A NAME="1193474"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Sets the year for a specified date according to local time.</ztabletext>
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    <TD VALIGN=TOP><A NAME="1193479"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline><A HREF="date.html#1194931"  >toGMTString</A>
</zcodeline>
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<P>
<A NAME="1193481"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Converts a date to a string, using the Internet GMT conventions.</ztabletext>
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    <TD VALIGN=TOP><A NAME="1193486"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline><A HREF="date.html#1194970"  >toLocaleString</A>
</zcodeline>
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<P>
<A NAME="1193488"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Converts a date to a string, using the current locale's conventions.</ztabletext>
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    <TD VALIGN=TOP><A NAME="1193493"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline><A HREF="date.html#1195016"  >toSource</A>
</zcodeline>
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<P>
<A NAME="1193495"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Returns an object literal representing the specified Date object; you can use this value to create a new object. Overrides the <A HREF="object.html#1193320"  >Object.toSource</A> method.</ztabletext>
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    <TD VALIGN=TOP><A NAME="1206982"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline><A HREF="date.html#1206669"  >toString</A>
</zcodeline>
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<P>
<A NAME="1206984"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Returns a string representing the specified Date object. Overrides the <A HREF="object.html#1193350"  >Object.toString</A> method.</ztabletext>
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<P>
<A NAME="1193500"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><A HREF="date.html#1195045"  >toUTCString</A></ztabletext>
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<P>
<A NAME="1193502"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Converts a date to a string, using the universal time convention.</ztabletext>
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    <TD VALIGN=TOP><A NAME="1193507"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline><A HREF="date.html#1195078"  >UTC</A>
</zcodeline>
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<P>
<A NAME="1193509"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Returns the number of milliseconds in a <FONT FACE="courier, couriernew, monospaced size">Date</FONT> object since January 1, 1970, 00:00:00, universal time.</ztabletext>
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    <TD VALIGN=TOP><A NAME="1207445"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline><A HREF="date.html#1206897"  >valueOf</A>
</zcodeline>
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<P>
<A NAME="1207447"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>Returns the primitive value of a Date object. Overrides the <A HREF="object.html#1193540"  >Object.valueOf</A> method.</ztabletext>
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<P></zparagraph>
</FONT>
<P>

<A NAME="1209135"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>In addition, this object inherits the <A HREF="object.html#1193628"  >watch</A> and <A HREF="object.html#1193499"  >unwatch</A> methods from <A HREF="object.html#1193136"  >Object</A>.</zparagraph>
</FONT>
<P>
<BR>
<A NAME="1193511"> </A>
<A NAME="Examples"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<B>
<zrefheader>Examples</zrefheader>
</B>
</FONT>
<BR>

<A NAME="1193512"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>The following examples show several ways to assign dates:</zparagraph>
</FONT>
<P>
<A NAME="1193513"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline>today = new Date()<br>
birthday = new Date("December 17, 1995 03:24:00")<br>
birthday = new Date(95,11,17)<br>
birthday = new Date(95,11,17,3,24,0)
</zcodeline>
</FONT>
<P><BR>
<P>
<A NAME="1209532"> </A>
<A NAME="constructor"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="4">
<B>
<zrefhead2>constructor</zrefhead2>
</B>
</FONT>
<P>

<A NAME="1209533"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>Specifies the function that creates an object's prototype. Note that the value of this property is a reference to the function itself, not a string containing the function's name.<BR>
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  <CAPTION></CAPTION><P><FONT FACE=""><B></B></FONT>
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<P>
<A NAME="1209536"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>Property of</I></ztabletext>
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<P>
<A NAME="1209541"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><A HREF="date.html#1193137"  >Date</A></ztabletext>
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<P>
<A NAME="1209543"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>Implemented in</I></ztabletext>
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<P>
<A NAME="1209545"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>JavaScript 1.1, NES 2.0</ztabletext>
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<P>
<A NAME="1209547"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>ECMA version</I></ztabletext>
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<P>
<A NAME="1209549"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>ECMA-262</ztabletext>
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<P></zparagraph>
</FONT>
<P>
<BR>
<A NAME="1209550"> </A>
<A NAME="Description"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<B>
<zrefheader>Description</zrefheader>
</B>
</FONT>
<BR>

<A NAME="1209554"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>See <A HREF="object.html#1193229"  >Object.constructor</A>.</zparagraph>
</FONT>
<P>
<BR>
<P>
<A NAME="1193537"> </A>
<A NAME="getDate"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="4">
<B>
<zrefhead2>getDate</zrefhead2>
</B>
</FONT>
<P>

<A NAME="1193550"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>Returns the day of the month for the specified date according to local time.<BR>
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  <CAPTION></CAPTION><P><FONT FACE=""><B></B></FONT>
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<P>
<A NAME="1193540"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>Method of</I></ztabletext>
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<P>
<A NAME="1193545"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><A HREF="date.html#1193137"  >Date</A></ztabletext>
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<P>
<A NAME="1193547"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>Implemented in</I></ztabletext>
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<P>
<A NAME="1193549"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>JavaScript 1.0, NES 2.0</ztabletext>
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<P>
<A NAME="1202758"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>ECMA version</I></ztabletext>
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<P>
<A NAME="1202760"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>ECMA-262</ztabletext>
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<P></zparagraph>
</FONT>
<P>
<BR>
<A NAME="1193551"> </A>
<A NAME="Syntax"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<B>
<zrefheader>Syntax</zrefheader>
</B>
</FONT>
<BR>
<A NAME="1193552"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline>getDate()
</zcodeline>
</FONT>
<P><BR>
<A NAME="1193553"> </A>
<A NAME="Parameters"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<B>
<zrefheader>Parameters</zrefheader>
</B>
</FONT>
<BR>

<A NAME="1193554"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>None</zparagraph>
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<P>
<BR>
<A NAME="1193555"> </A>
<A NAME="Description"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<B>
<zrefheader>Description</zrefheader>
</B>
</FONT>
<BR>

<A NAME="1193556"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>The value returned by <FONT FACE="courier, couriernew, monospaced size">getDate</FONT> is an integer between 1 and 31.</zparagraph>
</FONT>
<P>
<BR>
<A NAME="1193557"> </A>
<A NAME="Examples"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<B>
<zrefheader>Examples</zrefheader>
</B>
</FONT>
<BR>

<A NAME="1193558"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>The second statement below assigns the value 25 to the variable <FONT FACE="courier, couriernew, monospaced size">day</FONT>, based on the value of the <FONT FACE="courier, couriernew, monospaced size">Date</FONT> object <FONT FACE="courier, couriernew, monospaced size">Xmas95</FONT>.</zparagraph>
</FONT>
<P>
<A NAME="1193559"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline>Xmas95 = new Date("December 25, 1995 23:15:00")<br>
day = Xmas95.getDate()
</zcodeline>
</FONT>
<P><BR>
<A NAME="1193560"> </A>
<A NAME="See also"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<B>
<zrefheader>See also</zrefheader>
</B>
</FONT>
<BR>

<A NAME="1193570"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph><A HREF="date.html#1219395"  >Date.getUTCDate</A>, <A HREF="date.html#1193904"  >Date.getUTCDay</A>, <A HREF="date.html#1194228"  >Date.setDate</A></zparagraph>
</FONT>
<P>
<BR>
<P>
<A NAME="1193573"> </A>
<A NAME="getDay"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="4">
<B>
<zrefhead2>getDay</zrefhead2>
</B>
</FONT>
<P>

<A NAME="1193587"> </A><FONT FACE="Arial, Helvetica, sans-serif" SIZE="2"><zparagraph>Returns the day of the week for the specified date according to local time.<BR>
<P>
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  <CAPTION></CAPTION><P><FONT FACE=""><B></B></FONT>
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<P>
<A NAME="1193577"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>Method of</I></ztabletext>
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<P>
<A NAME="1193582"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><A HREF="date.html#1193137"  >Date</A></ztabletext>
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<P>
<A NAME="1193584"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>Implemented in</I></ztabletext>
</FONT>&nbsp;</TD>
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<P>
<A NAME="1193586"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>JavaScript 1.0, NES 2.0</ztabletext>
</FONT>&nbsp;</TD>
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<P>
<A NAME="1202806"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext><I>ECMA version</I></ztabletext>
</FONT>&nbsp;</TD>
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<P>
<A NAME="1202808"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<ztabletext>ECMA-262</ztabletext>
</FONT>&nbsp;</TD>
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<P></zparagraph>
</FONT>
<P>
<BR>
<A NAME="1193588"> </A>
<A NAME="Syntax"> </A>
<FONT FACE="Arial, Helvetica, sans-serif" SIZE="2">
<B>
<zrefheader>Syntax</zrefheader>
</B>
</FONT>
<BR>
<A NAME="1193589"></A><FONT FACE="courier, couriernew, monospaced size" SIZE="2">
<zcodeline>getDay()