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📄 用javascript判断日期、数字、整数和特殊字符-(2)_javascript实例教程_javascript_网页设计.mht

📁 asp.net ,javascript 常用的字符操作函数
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<P>{ <BR>tempy =3D tempArray[0]; <BR>tempd =3D tempArray[2]; <BR>} =
<BR>else <BR>{=20
<BR>tempy =3D tempArray[2]; <BR>tempd =3D tempArray[1]; <BR>} <BR>tempm =
=3D=20
tempArray[1]; <BR>var tDateString =3D tempy + &acute;/&acute;+tempm + =
&acute;/&acute;+tempd+&acute;=20
8:0:0&acute;;//=BC=D3=B0=CB=D0=A1=CA=B1=CA=C7=D2=F2=CE=AA=CE=D2=C3=C7=B4=A6=
=D3=DA=B6=AB=B0=CB=C7=F8 <BR>var tempDate =3D new Date(tDateString); =
<BR>if=20
(isNaN(tempDate)) <BR>return false; <BR>if=20
(((tempDate.getUTCFullYear()).toString()=3D=3Dtempy) &amp;&amp;=20
(tempDate.getMonth()=3D=3DparseInt(tempm)-1) &amp;&amp;=20
(tempDate.getDate()=3D=3DparseInt(tempd))) <BR>{ <BR>return true; <BR>} =
<BR>else=20
<BR>{ <BR>return false; <BR>} <BR>} <BR><BR>/** <BR>IsNumber:=20
=D3=C3=D3=DA=C5=D0=B6=CF=D2=BB=B8=F6=CA=FD=D7=D6=D0=CD=D7=D6=B7=FB=B4=AE=CA=
=C7=B7=F1=CE=AA=CA=FD=D6=B5=D0=CD=A3=AC =
<BR>=BB=B9=BF=C9=C5=D0=B6=CF=CA=C7=B7=F1=CA=C7=D5=FD=CA=FD=BB=F2=B8=BA=CA=
=FD=A3=AC=B7=B5=BB=D8=D6=B5=CE=AAtrue=BB=F2false <BR>string: =
=D0=E8=D2=AA=C5=D0=B6=CF=B5=C4=D7=D6=B7=FB=B4=AE=20
<BR>sign: =
=C8=F4=D2=AA=C5=D0=B6=CF=CA=C7=D5=FD=B8=BA=CA=FD=CA=C7=CA=B9=D3=C3=A3=AC=CA=
=C7=D5=FD=D3=C3&acute;+&acute;=A3=AC=B8=BA&acute;-&acute;=A3=AC=B2=BB=D3=C3=
=D4=F2=B1=ED=CA=BE=B2=BB=D7=F7=C5=D0=B6=CF <BR>Author: PPDJ <BR>sample: =
<BR>var=20
a =3D &acute;123&acute;; <BR>if (IsNumber(a)) <BR>{ <BR>alert(&acute;a =
is a number&acute;); <BR>} <BR>if=20
(IsNumber(a,&acute;+&acute;)) <BR>{ <BR>alert(a is a positive number); =
<BR>} <BR>if=20
(IsNumber(a,&acute;-&acute;)) <BR>{ <BR>alert(&acute;a is a negative =
number&acute;); <BR>} <BR>*/=20
<BR><BR>function IsNumber(string,sign) <BR>{ <BR>var number; <BR>if=20
(string=3D=3Dnull) return false; <BR>if ((sign!=3Dnull) &amp;&amp; =
(sign!=3D&acute;-&acute;)=20
&amp;&amp; (sign!=3D&acute;+&acute;)) <BR>{ =
<BR>alert(&acute;IsNumber(string,sign)=B5=C4=B2=CE=CA=FD=B3=F6=B4=ED=A3=BA=
=20
sign=CE=AAnull=BB=F2"-"=BB=F2"+"&acute;); <BR>return false; <BR>} =
<BR>number =3D new Number(string);=20
<BR>if (isNaN(number)) <BR>{ <BR>return false; <BR>} <BR>else if =
((sign=3D=3Dnull)=20
|| (sign=3D=3D&acute;-&acute; &amp;&amp; number&lt;0) || =
(sign=3D=3D&acute;+&acute; &amp;&amp; number&gt;0))=20
<BR>{ <BR>return true; <BR>} <BR>else <BR>return false; <BR>} =
<BR><BR><BR>/**=20
<BR>SpecialString: =
=D3=C3=D3=DA=C5=D0=B6=CF=D2=BB=B8=F6=D7=D6=B7=FB=B4=AE=CA=C7=B7=F1=BA=AC=D3=
=D0=BB=F2=B2=BB=BA=AC=D3=D0=C4=B3=D0=A9=D7=D6=B7=FB =
<BR><BR>=B7=B5=BB=D8=D6=B5=A3=BA <BR>true=BB=F2false =
<BR><BR>=B2=CE=CA=FD=A3=BA=20
<BR>string =A3=BA =D0=E8=D2=AA=C5=D0=B6=CF=B5=C4=D7=D6=B7=FB=B4=AE =
<BR>compare =A3=BA =
=B1=C8=BD=CF=B5=C4=D7=D6=B7=FB=B4=AE(=BB=F9=D7=BC=D7=D6=B7=FB=B4=AE) =
<BR>BelongOrNot=A3=BA=20
true=BB=F2false=A3=AC=A1=B0true=A1=B1=B1=ED=CA=BEstring=B5=C4=C3=BF=D2=BB=
=B8=F6=D7=D6=B7=FB=B6=BC=B0=FC=BA=AC=D4=DAcompare=D6=D0=A3=AC=20
<BR>=A1=B0false=A1=B1=B1=ED=CA=BEstring=B5=C4=C3=BF=D2=BB=B8=F6=D7=D6=B7=FB=
=B6=BC=B2=BB=B0=FC=BA=AC=D4=DAcompare=D6=D0 <BR><BR>Author: PPDJ =
<BR>sample1: <BR>var=20
str =3D &acute;123G&acute;; <BR>if =
(SpecialString(str,&acute;1234567890&acute;)) <BR>{ =
<BR>alert(&acute;Yes, All=20
the letter of the string in &acute;1234567890&acute;&acute;); <BR>} =
<BR>else <BR>{ <BR>alert(&acute;No,=20
one or more letters of the string not in =
&acute;1234567890&acute;&acute;); <BR>} =
<BR>=BD=E1=B9=FB=D6=B4=D0=D0=B5=C4=CA=C7else=B2=BF=B7=D6=20
<BR>sample2: <BR>var password =3D &acute;1234&acute;; <BR>if=20
(!SpecialString(password,&acute;&acute;"@#$%&acute;,false)) <BR>{ =
<BR>alert(&acute;Yes, The password is=20
correct.&acute;); <BR>} <BR>else <BR>{ <BR>alert(&acute;No, The password =
is contain one or=20
more letters of &acute;"@#$%&acute;&acute;); <BR>} =
<BR>=BD=E1=B9=FB=D6=B4=D0=D0=B5=C4=CA=C7else=B2=BF=B7=D6 <BR>*/ =
<BR>function=20
SpecialString(string,compare,BelongOrNot) <BR>{ <BR>if =
((string=3D=3Dnull) ||=20
(compare=3D=3Dnull) || ((BelongOrNot!=3Dnull) &amp;&amp; =
(BelongOrNot!=3Dtrue)=20
&amp;&amp; (BelongOrNot!=3Dfalse))) <BR>{ <BR>alert(&acute;function=20
SpecialString(string,compare,BelongOrNot)=B2=CE=CA=FD=B4=ED=CE=F3&acute;)=
; <BR>return false; <BR>} <BR>if=20
(BelongOrNot=3D=3Dnull || BelongOrNot=3D=3Dtrue) <BR>{ <BR>for (var =
i=3D0;i{ <BR>if=20
(compare.indexOf(string.charAt(i))=3D=3D-1) <BR>return false <BR>} =
<BR>return true;=20
<BR>} <BR>else <BR>{ <BR>for (var i=3D0;i{ <BR>if=20
(compare.indexOf(string.charAt(i))!=3D-1) <BR>return false <BR>} =
<BR>return true;=20
<BR>} <BR>} <BR><BR><BR>//--&gt; <BR>&lt; /script&gt; <BR><BR><BR>
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onclick=3D"window.open('/user/chm/rar.asp?c_id=3D4837')"=20
href=3D"http://www.diybl.com/course/1_web/javascript/Javascriptshl/200721=
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href=3D"http://www.diybl.com/course/1_web/javascript/Javascriptshl/200721=
/4418.html"=20
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