number.js

这是一个ajax的例子大家好好的看看就是一个鱼眼的效果

if(!dojo._hasResource["dojo.number"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojo.number"] = true;
dojo.provide("dojo.number");

dojo.require("dojo.i18n");
dojo.requireLocalization("dojo.cldr", "number", null, "zh-cn,zh,ko-kr,pt,en-us,en-gb,de,ja,ja-jp,en,ROOT,en-au,fr,es,ko,zh-tw,it,es-es,de-de");
dojo.require("dojo.string");
dojo.require("dojo.regexp");


/*=====
dojo.number = {
	// summary: localized formatting and parsing routines for Number
}

dojo.number.__FormatOptions = function(){
	//	pattern: String?
	//		override [formatting pattern](http://www.unicode.org/reports/tr35/#Number_Format_Patterns)
	//		with this string
	//	type: String?
	//		choose a format type based on the locale from the following:
	//		decimal, scientific, percent, currency. decimal by default.
	//	places: Number?
	//		fixed number of decimal places to show.  This overrides any
	//		information in the provided pattern.
	//	round: Number?
	//		5 rounds to nearest .5; 0 rounds to nearest whole (default). -1
	//		means don't round.
	//	currency: String?
	//		an [ISO4217](http://en.wikipedia.org/wiki/ISO_4217) currency code, a three letter sequence like "USD"
	//	symbol: String?
	//		localized currency symbol
	//	locale: String?
	//		override the locale used to determine formatting rules
	this.pattern = pattern;
	this.type = type;
	this.places = places;
	this.round = round;
	this.currency = currency;
	this.symbol = symbol;
	this.locale = locale;
}
=====*/

dojo.number.format = function(/*Number*/value, /*dojo.number.__FormatOptions?*/options){
	// summary:
	//		Format a Number as a String, using locale-specific settings
	// description:
	//		Create a string from a Number using a known localized pattern.
	//		Formatting patterns appropriate to the locale are chosen from the
	//		[CLDR](http://unicode.org/cldr) as well as the appropriate symbols and
	//		delimiters.  See <http://www.unicode.org/reports/tr35/#Number_Elements>
	// value:
	//		the number to be formatted.  If not a valid JavaScript number,
	//		return null.

	options = dojo.mixin({}, options || {});
	var locale = dojo.i18n.normalizeLocale(options.locale);
	var bundle = dojo.i18n.getLocalization("dojo.cldr", "number", locale);
	options.customs = bundle;
	var pattern = options.pattern || bundle[(options.type || "decimal") + "Format"];
	if(isNaN(value)){ return null; } // null
	return dojo.number._applyPattern(value, pattern, options); // String
};

//dojo.number._numberPatternRE = /(?:[#0]*,?)*[#0](?:\.0*#*)?/; // not precise, but good enough
dojo.number._numberPatternRE = /[#0,]*[#0](?:\.0*#*)?/; // not precise, but good enough

dojo.number._applyPattern = function(/*Number*/value, /*String*/pattern, /*dojo.number.__FormatOptions?*/options){
	// summary:
	//		Apply pattern to format value as a string using options. Gives no
	//		consideration to local customs.
	// value:
	//		the number to be formatted.
	// pattern:
	//		a pattern string as described by
	//		[unicode.org TR35](http://www.unicode.org/reports/tr35/#Number_Format_Patterns)
	// options: dojo.number.__FormatOptions?
	//		_applyPattern is usually called via `dojo.number.format()` which
	//		populates an extra property in the options parameter, "customs".
	//		The customs object specifies group and decimal parameters if set.

	//TODO: support escapes
	options = options || {};
	var group = options.customs.group;
	var decimal = options.customs.decimal;

	var patternList = pattern.split(';');
	var positivePattern = patternList[0];
	pattern = patternList[(value < 0) ? 1 : 0] || ("-" + positivePattern);

	//TODO: only test against unescaped
	if(pattern.indexOf('%') != -1){
		value *= 100;
	}else if(pattern.indexOf('\u2030') != -1){
		value *= 1000; // per mille
	}else if(pattern.indexOf('\u00a4') != -1){
		group = options.customs.currencyGroup || group;//mixins instead?
		decimal = options.customs.currencyDecimal || decimal;// Should these be mixins instead?
		pattern = pattern.replace(/\u00a4{1,3}/, function(match){
			var prop = ["symbol", "currency", "displayName"][match.length-1];
			return options[prop] || options.currency || "";
		});
	}else if(pattern.indexOf('E') != -1){
		throw new Error("exponential notation not supported");
	}
	
	//TODO: support @ sig figs?
	var numberPatternRE = dojo.number._numberPatternRE;
	var numberPattern = positivePattern.match(numberPatternRE);
	if(!numberPattern){
		throw new Error("unable to find a number expression in pattern: "+pattern);
	}
	return pattern.replace(numberPatternRE,
		dojo.number._formatAbsolute(value, numberPattern[0], {decimal: decimal, group: group, places: options.places}));
}

dojo.number.round = function(/*Number*/value, /*Number*/places, /*Number?*/multiple){
	//	summary:
	//		Rounds the number at the given number of places
	//	value:
	//		the number to round
	//	places:
	//		the number of decimal places where rounding takes place
	//	multiple:
	//		rounds next place to nearest multiple

	var pieces = String(value).split(".");
	var length = (pieces[1] && pieces[1].length) || 0;
	if(length > places){
		var factor = Math.pow(10, places);
		if(multiple > 0){factor *= 10/multiple;places++;} //FIXME
		value = Math.round(value * factor)/factor;

		// truncate to remove any residual floating point values
		pieces = String(value).split(".");
		length = (pieces[1] && pieces[1].length) || 0;
		if(length > places){
			pieces[1] = pieces[1].substr(0, places);
			value = Number(pieces.join("."));
		}
	}
	return value; //Number
}

/*=====
dojo.number.__FormatAbsoluteOptions = function(){
	//	decimal: String?
	//		the decimal separator
	//	group: String?
	//		the group separator
	//	places: Integer?
	//		number of decimal places
	//	round: Number?
	//		5 rounds to nearest .5; 0 rounds to nearest whole (default). -1
	//		means don't round.
	this.decimal = decimal;
	this.group = group;
	this.places = places;
	this.round = round;
}
=====*/

dojo.number._formatAbsolute = function(/*Number*/value, /*String*/pattern, /*dojo.number.__FormatAbsoluteOptions?*/options){
	// summary: 
	//		Apply numeric pattern to absolute value using options. Gives no
	//		consideration to local customs.
	// value:
	//		the number to be formatted, ignores sign
	// pattern:
	//		the number portion of a pattern (e.g. `#,##0.00`)
	options = options || {};
	if(options.places === true){options.places=0;}
	if(options.places === Infinity){options.places=6;} // avoid a loop; pick a limit

	var patternParts = pattern.split(".");
	var maxPlaces = (options.places >= 0) ? options.places : (patternParts[1] && patternParts[1].length) || 0;
	if(!(options.round < 0)){
		value = dojo.number.round(value, maxPlaces, options.round);
	}

	var valueParts = String(Math.abs(value)).split(".");
	var fractional = valueParts[1] || "";
	if(options.places){
		valueParts[1] = dojo.string.pad(fractional.substr(0, options.places), options.places, '0', true);
	}else if(patternParts[1] && options.places !== 0){
		// Pad fractional with trailing zeros
		var pad = patternParts[1].lastIndexOf("0") + 1;
		if(pad > fractional.length){
			valueParts[1] = dojo.string.pad(fractional, pad, '0', true);
		}

		// Truncate fractional
		var places = patternParts[1].length;
		if(places < fractional.length){
			valueParts[1] = fractional.substr(0, places);
		}
	}else{
		if(valueParts[1]){ valueParts.pop(); }
	}

	// Pad whole with leading zeros
	var patternDigits = patternParts[0].replace(',', '');
	pad = patternDigits.indexOf("0");
	if(pad != -1){
		pad = patternDigits.length - pad;
		if(pad > valueParts[0].length){
			valueParts[0] = dojo.string.pad(valueParts[0], pad);
		}

		// Truncate whole
		if(patternDigits.indexOf("#") == -1){
			valueParts[0] = valueParts[0].substr(valueParts[0].length - pad);
		}
	}

	// Add group separators
	var index = patternParts[0].lastIndexOf(',');
	var groupSize, groupSize2;
	if(index != -1){
		groupSize = patternParts[0].length - index - 1;
		var remainder = patternParts[0].substr(0, index);
		index = remainder.lastIndexOf(',');
		if(index != -1){
			groupSize2 = remainder.length - index - 1;
		}
	}
	var pieces = [];
	for(var whole = valueParts[0]; whole;){
		var off = whole.length - groupSize;
		pieces.push((off > 0) ? whole.substr(off) : whole);
		whole = (off > 0) ? whole.slice(0, off) : "";
		if(groupSize2){
			groupSize = groupSize2;
			delete groupSize2;
		}
	}
	valueParts[0] = pieces.reverse().join(options.group || ",");

	return valueParts.join(options.decimal || ".");
};

/*=====
dojo.number.__RegexpOptions = function(){
	//	pattern: String?
	//		override pattern with this string.  Default is provided based on
	//		locale.
	//	type: String?
	//		choose a format type based on the locale from the following:
	//		decimal, scientific, percent, currency. decimal by default.
	//	locale: String?
	//		override the locale used to determine formatting rules
	//	strict: Boolean?
	//		strict parsing, false by default
	//	places: Number|String?
	//		number of decimal places to accept: Infinity, a positive number, or
	//		a range "n,m".  By default, defined by pattern.
	this.pattern = pattern;
	this.type = type;
	this.locale = locale;
	this.strict = strict;
	this.places = places;
}
=====*/
dojo.number.regexp = function(/*dojo.number.__RegexpOptions?*/options){
	//	summary:
	//		Builds the regular needed to parse a number
	//	description:
	//		Returns regular expression with positive and negative match, group
	//		and decimal separators
	return dojo.number._parseInfo(options).regexp; // String
}

dojo.number._parseInfo = function(/*Object?*/options){
	options = options || {};
	var locale = dojo.i18n.normalizeLocale(options.locale);