<script> function MatchDemo(){ var r, re; // 声明变量。 var s = "The rain in Spain falls mainly in the plain"; re = /ain/ig; // 创建正则表达式模式。 r = s.match(re); // 尝试去匹配搜索字符串。 return(r); // 返回的数组包含了所有 "ain" // 出现的四个匹配。 } alert(MatchDemo().length) </script>
<script type="text/javascript"> //<![CDATA[ onload=function(){ var str=document.body.innerHTML.toLowerCase();
function fStrGetTimes(sSrc, sMatch){ var iTime=0; switch(arguments.length){ case 2: var re=new RegExp('\\b('+sMatch+')\\b', 'gi'); sSrc.replace(re, function($0,$1){ if($1!='')iTime+=1; });
return iTime; break; case 1: default:return 0; } } // end function fStrGetTimes // shawl.qiu code //]]> </script> <xmp>Class DefinitionsClasses are defined using the class keyword. ClassDefinition class Identifier Inheritance Block Inheritance «empty» | extends TypeExpressionallowInLike other definitions, a class definition may be preceded by one or more attributes, which affect the class’s scope, namespace, and semantics. Every class is also a value and has type Type.A class definition may only be located at a scope that allows class definitions, defined as follows: The global scope allows class definitions A package scope allows class definitions A class scope allows class definitions If a scope X allows class definitions and a block B is directly inside scope X, then B’s scope also allows class definitionsAccording to these rules, a class may not be defined inside a function or a compound statement other than a block. If a class B is defined as a member of another class A, then B must be declared static.</xmp>
这样写比较灵活点...<script type="text/javascript"> //<![CDATA[ onload=function(){ var str=document.body.innerHTML.toLowerCase();
function fStrGetTimes(sSrc, sMatch, bCharacter){ var iTime=0; switch(arguments.length){ case 2: var re=new RegExp('\\b('+sMatch+')\\b', 'gi'); sSrc.replace(re, function($0,$1){ if($1!='')iTime+=1; }); return iTime;
case 3: var re=new RegExp('('+sMatch+')', 'gi'); sSrc.replace(re, function($0,$1){ if($1!='')iTime+=1; }); return iTime;
case 1: default:return 0; } } // end function fStrGetTimes // shawl.qiu code //]]> </script>
function occurs(souce, target) { return Souce.split(target).length - 1; }alert(occurs('sasawdassaae', 'a'));
function MatchDemo(){
var r, re; // 声明变量。
var s = "The rain in Spain falls mainly in the plain";
re = /ain/ig; // 创建正则表达式模式。
r = s.match(re); // 尝试去匹配搜索字符串。
return(r); // 返回的数组包含了所有 "ain"
// 出现的四个匹配。
}
alert(MatchDemo().length)
</script>
//<![CDATA[
onload=function(){
var str=document.body.innerHTML.toLowerCase();
alert(fStrGetTimes(str, 'scope'));
alert(fStrGetTimes(str, 'class'));
}
function fStrGetTimes(sSrc, sMatch){
var iTime=0;
switch(arguments.length){
case 2:
var re=new RegExp('\\b('+sMatch+')\\b', 'gi');
sSrc.replace(re, function($0,$1){
if($1!='')iTime+=1;
});
return iTime;
break;
case 1:
default:return 0;
}
} // end function fStrGetTimes // shawl.qiu code
//]]>
</script>
<xmp>Class DefinitionsClasses are defined using the class keyword.
ClassDefinition class Identifier Inheritance Block
Inheritance
«empty»
| extends TypeExpressionallowInLike other definitions, a class definition may be preceded by one or more attributes, which affect the class’s scope, namespace, and semantics. Every class is also a value and has type Type.A class definition may only be located at a scope that allows class definitions, defined as follows:
The global scope allows class definitions
A package scope allows class definitions
A class scope allows class definitions
If a scope X allows class definitions and a block B is directly inside scope X, then B’s scope also allows class definitionsAccording to these rules, a class may not be defined inside a function or a compound statement other than a block. If a class B is defined as a member of another class A, then B must be declared static.</xmp>
//<![CDATA[
onload=function(){
var str=document.body.innerHTML.toLowerCase();
alert(fStrGetTimes(str, 's', true));
alert(fStrGetTimes(str, 'class'));
}
function fStrGetTimes(sSrc, sMatch, bCharacter){
var iTime=0;
switch(arguments.length){
case 2:
var re=new RegExp('\\b('+sMatch+')\\b', 'gi');
sSrc.replace(re, function($0,$1){
if($1!='')iTime+=1;
});
return iTime;
case 3:
var re=new RegExp('('+sMatch+')', 'gi');
sSrc.replace(re, function($0,$1){
if($1!='')iTime+=1;
});
return iTime;
case 1:
default:return 0;
}
} // end function fStrGetTimes // shawl.qiu code
//]]>
</script>
return Souce.split(target).length - 1;
}alert(occurs('sasawdassaae', 'a'));