日期减去天数等于第二个日期

日期减去天数等于第二个日期0 x3 B2 X* ?3 Q% R  f& G
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<script language=Javascript>
0 c8 w+ f% v: t/ }1 f/ mfunction cc(dd,dadd), f5 j' K! C/ c' ~& F
{" O3 x% f3 x5 d! T7 T
//可以加上错误处理  X+ T3 a  n8 D; \3 Q" u' \& S
var a = new Date(dd)/ t& m' z1 P  b" N, y4 U/ s
a = a.valueOf()
2 g: N# k  j- ya = a - dadd * 24 * 60 * 60 * 1000
/ M" q: R  Y* f1 c3 D6 R3 f! Ia = new Date(a)' m2 M( @# j+ f, I3 g1 |
alert(a.getFullYear() + "年" + (a.getMonth() + 1) + "月" + a.getDate() + "日")$ f0 g; ~) Q, c! N3 e! u
}
4 J# Y* r8 t' Icc("12/23/2002",2)# x1 h# T2 B& y4 ^1 t
</script>