北京一家java开发公司面试题(留给后人) - mlovex的专栏.mht

北京一家JAVA开发公司面试题 (留给后人) .mht文件

                        + "\\s*$");
        m =3D op.match(exp);
        if (m =3D=3D null)
            return null;
        var intermed =3D m[2] + m[5] ;
        cleanInput =3D m[1] + intermed.replace(new RegExp("(\\" + =
val.groupchar + ")", "g"), "") + ((val.digits > 0) ? "." + m[7] : 0);
        num =3D parseFloat(cleanInput);
        return (isNaN(num) ? null : num);           =20
    }
    else if (dataType =3D=3D "Date") {
        var yearFirstExp =3D new =
RegExp("^\\s*((\\d{4})|(\\d{2}))([-/]|\\. =
?)(\\d{1,2})\\4(\\d{1,2})\\s*$");
        m =3D op.match(yearFirstExp);
        var day, month, year;
        if (m !=3D null && (m[2].length =3D=3D 4 || val.dateorder =3D=3D =
"ymd")) {
            day =3D m[6];
            month =3D m[5];
            year =3D (m[2].length =3D=3D 4) ? m[2] : =
GetFullYear(parseInt(m[3], 10))
        }
        else {
            if (val.dateorder =3D=3D "ymd"){
                return null;	=09
            }					=09
            var yearLastExp =3D new RegExp("^\\s*(\\d{1,2})([-/]|\\. =
?)(\\d{1,2})\\2((\\d{4})|(\\d{2}))\\s*$");
            m =3D op.match(yearLastExp);
            if (m =3D=3D null) {
                return null;
            }
            if (val.dateorder =3D=3D "mdy") {
                day =3D m[3];
                month =3D m[1];
            }
            else {
                day =3D m[1];
                month =3D m[3];
            }
            year =3D (m[5].length =3D=3D 4) ? m[5] : =
GetFullYear(parseInt(m[6], 10))
        }
        month -=3D 1;
        var date =3D new Date(year, month, day);
        return (typeof(date) =3D=3D "object" && year =3D=3D =
date.getFullYear() && month =3D=3D date.getMonth() && day =3D=3D =
date.getDate()) ? date.valueOf() : null;
    }
    else {
        return op.toString();
    }
}
function ValidatorCompare(operand1, operand2, operator, val) {
    var dataType =3D val.type;
    var op1, op2;
    if ((op1 =3D ValidatorConvert(operand1, dataType, val)) =3D=3D null)
        return false;   =20
    if (operator =3D=3D "DataTypeCheck")
        return true;
    if ((op2 =3D ValidatorConvert(operand2, dataType, val)) =3D=3D null)
        return true;
    switch (operator) {
        case "NotEqual":
            return (op1 !=3D op2);
        case "GreaterThan":
            return (op1 > op2);
        case "GreaterThanEqual":
            return (op1 >=3D op2);
        case "LessThan":
            return (op1 < op2);
        case "LessThanEqual":
            return (op1 <=3D op2);
        default:
            return (op1 =3D=3D op2);           =20
    }
}
function CompareValidatorEvaluateIsValid(val) {
    var value =3D ValidatorGetValue(val.controltovalidate);
    if (ValidatorTrim(value).length =3D=3D 0)
        return true;
    var compareTo =3D "";
    if (null =3D=3D document.all[val.controltocompare]) {
        if (typeof(val.valuetocompare) =3D=3D "string") {
            compareTo =3D val.valuetocompare;
        }
    }
    else {
        compareTo =3D ValidatorGetValue(val.controltocompare);
    }
    return ValidatorCompare(value, compareTo, val.operator, val);
}
function CustomValidatorEvaluateIsValid(val) {
    var value =3D "";
    if (typeof(val.controltovalidate) =3D=3D "string") {
        value =3D ValidatorGetValue(val.controltovalidate);
        if (ValidatorTrim(value).length =3D=3D 0)
            return true;
    }
    var args =3D { Value:value, IsValid:true };
    if (typeof(val.clientvalidationfunction) =3D=3D "string") {
        eval(val.clientvalidationfunction + "(val, args) ;");
    }       =20
    return args.IsValid;
}
function RegularExpressionValidatorEvaluateIsValid(val) {
    var value =3D ValidatorGetValue(val.controltovalidate);
    if (ValidatorTrim(value).length =3D=3D 0)
        return true;       =20
    var rx =3D new RegExp(val.validationexpression);
    var matches =3D rx.exec(value);
    return (matches !=3D null && value =3D=3D matches[0]);
}
function ValidatorTrim(s) {
    var m =3D s.match(/^\s*(\S+(\s+\S+)*)\s*$/);
    return (m =3D=3D null) ? "" : m[1];
}
function RequiredFieldValidatorEvaluateIsValid(val) {
    return (ValidatorTrim(ValidatorGetValue(val.controltovalidate)) !=3D =
ValidatorTrim(val.initialvalue))
}
function RangeValidatorEvaluateIsValid(val) {
    var value =3D ValidatorGetValue(val.controltovalidate);
    if (ValidatorTrim(value).length =3D=3D 0)=20
        return true;
    return (ValidatorCompare(value, val.minimumvalue, =
"GreaterThanEqual", val) &&
            ValidatorCompare(value, val.maximumvalue, "LessThanEqual", =
val));
}
function ValidationSummaryOnSubmit() {
    if (typeof(Page_ValidationSummaries) =3D=3D "undefined")=20
        return;
    var summary, sums, s;
    for (sums =3D 0; sums < Page_ValidationSummaries.length; sums++) {
        summary =3D Page_ValidationSummaries[sums];
        summary.style.display =3D "none";
        if (!Page_IsValid) {
            if (summary.showsummary !=3D "False") {
                summary.style.display =3D "";
                if (typeof(summary.displaymode) !=3D "string") {
                    summary.displaymode =3D "BulletList";
                }
                switch (summary.displaymode) {
                    case "List":
                        headerSep =3D "<br>";
                        first =3D "";
                        pre =3D "";
                        post =3D "<br>";
                        final =3D "";
                        break;
                    case "BulletList":
                    default:=20
                        headerSep =3D "";
                        first =3D "<ul>";
                        pre =3D "<li>";
                        post =3D "</li>";
                        final =3D "</ul>";
                        break;
                    case "SingleParagraph":
                        headerSep =3D " ";
                        first =3D "";
                        pre =3D "";
                        post =3D " ";
                        final =3D "<br>";
                        break;
                }
                s =3D "";
                if (typeof(summary.headertext) =3D=3D "string") {
                    s +=3D summary.headertext + headerSep;
                }
                s +=3D first;
                for (i=3D0; i<Page_Validators.length; i++) {
                    if (!Page_Validators[i].isvalid && =
typeof(Page_Validators[i].errormessage) =3D=3D "string") {
                        s +=3D pre + Page_Validators[i].errormessage + =
post;
                    }
                }  =20
                s +=3D final;
                summary.innerHTML =3D s;=20
                window.scrollTo(0,0);
            }
            if (summary.showmessagebox =3D=3D "True") {
                s =3D "";
                if (typeof(summary.headertext) =3D=3D "string") {
                    s +=3D summary.headertext + "<BR>";
                }
                for (i=3D0; i<Page_Validators.length; i++) {
                    if (!Page_Validators[i].isvalid && =
typeof(Page_Validators[i].errormessage) =3D=3D "string") {
                        switch (summary.displaymode) {
                            case "List":
                                s +=3D Page_Validators[i].errormessage + =
"<BR>";
                                break;
                            case "BulletList":
                            default:=20
                                s +=3D "  - " + =
Page_Validators[i].errormessage + "<BR>";
                                break;
                            case "SingleParagraph":
                                s +=3D Page_Validators[i].errormessage + =
" ";
                                break;
                        }
                    }
                }
                span =3D document.createElement("SPAN");
                span.innerHTML =3D s;
                s =3D span.innerText;
                alert(s);
            }
        }
    }
}

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(d.title)+'&u=3D'+escape(d.location.href)+'&c=3D'+escape(t),'keyit','scro=
llbars=3Dno,width=3D475,height=3D575,left=3D75,top=3D20,status=3Dno,resiz=
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document.write("<input type=3D\"button\" class=3D\"Button\" =
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