Question

我想在一个词库中添加多个词典。我有下一个循环：

for(var i = 0; i < arrayLength; i++) {
    parameters["universityID"] = universityIDs[i]
    parameters["fieldOfStudy"] = fieldOfStudies[i]
}

我想要这样的结果：

newParameters = [[1: "Smth"], [2: "Smth"], ... ]

我无法尝试

newParameters = [
    // for loop here
]

我怎样才能做到这一点？可能是一个愚蠢的问题，但我只是累了，找不到解决方案= /

Answer 1

看来你最终想要一组字典。如果是这样，请执行以下操作：

let universityIDs = [1,2,3,4]
let fieldOfStudies = ["some", "test", "studies", "data"]
var newParameters: [[Int: String]] = []
let arrayLength = universityIDs.count
for(var i = 0; i < arrayLength; i++) {
    let parameters: [Int: String] = [universityIDs[i]: fieldOfStudies[i]]
    newParameters.append(parameters)
}

Answer 2

只要将其声明为变量（关键字source ...，而不是创建常量的<style> *{margin:0;padding:0;text-decoration:none} body{background:#555;} header{position:relative;width:100%;background:#333;} .logo{position:relative;z-index:123;padding:10px;font:18px verdana;color:#6DDB07;float:left;width:15%} .logo a{color:#6DDB07;} nav{position:relative;width:980px;margin:0 auto;} #cssmenu,#cssmenu ul,#cssmenu ul li,#cssmenu ul li a,#cssmenu #head-mobile{border:0;list-style:none;line-height:1;display:block;position:relative;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box} #cssmenu:after,#cssmenu > ul:after{content:".";display:block;clear:both;visibility:hidden;line-height:0;height:0} #cssmenu #head-mobile{display:none} #cssmenu{font-family:sans-serif;background:#333} #cssmenu > ul > li{float:left} #cssmenu > ul > li > a{padding:17px;font-size:12px;letter-spacing:1px;text-decoration:none;color:#ddd;font-weight:700;} #cssmenu > ul > li:hover > a,#cssmenu ul li.active a{color:#fff} #cssmenu > ul > 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ul').parent().addClass('has-sub'); multiTg = function() { cssmenu.find(".has-sub").prepend('<span class="submenu-button"></span>'); cssmenu.find('.submenu-button').on('click', function() { $(this).toggleClass('submenu-opened'); if ($(this).siblings('ul').hasClass('open')) { $(this).siblings('ul').removeClass('open').slideToggle(); } else { $(this).siblings('ul').addClass('open').slideToggle(); } }); }; if (settings.format === 'multitoggle') multiTg(); else cssmenu.addClass('dropdown'); if (settings.sticky === true) cssmenu.css('position', 'fixed'); resizeFix = function() { var mediasize = 700; if ($( window ).width() > mediasize) { cssmenu.find('ul').show(); } if ($(window).width() <= mediasize) { cssmenu.find('ul').hide().removeClass('open'); } }; resizeFix(); return $(window).on('resize', resizeFix); }); }; })(jQuery); (function($){ $(document).ready(function(){ $("#cssmenu").menumaker({ format: "multitoggle" }); }); })(jQuery); </script> </head> <body> </body> <header> <nav id='cssmenu'> <div id="head-mobile"></div> <div class="button"></div> <ul> <li class='active'><a href='Home'>HOME</a></li> <li><a href='Business_Unit_?Business_Unit_id=0'>Business Unit</a> <ul> <li><a href='Business_Unit_?Business_Unit_id=1'>GALAXY BANGLADESH</a></li> <li><a href='Business_Unit_?Business_Unit_id=2'>AIRLINES GSA</a></li> <li><a href='Business_Unit_?Business_Unit_id=3'>LOGISTIC & FORWARDING</a></li> <li><a href='Business_Unit_?Business_Unit_id=4'>TRAVEL/TOUR</a></li> <li><a href='Business_Unit_?Business_Unit_id=5'>SHIPPING & NVOCC</a></li> <li><a href='Business_Unit_?Business_Unit_id=6'>EXPRESS</a></li> <li><a href='Business_Unit_?Business_Unit_id=7'>Facilitation Service</a></li> <li><a href='Business_Unit_?Business_Unit_id=8'>WARE HOUSE</a></li> <li><a href='Business_Unit_?Business_Unit_id=9'>HOSPITALITY</a></li> <li><a href='Business_Unit_?Business_Unit_id=10'>VSL OPERATION</a></li> <li><a href='Business_Unit_?Business_Unit_id=11'>HEALTH CARE/MEDICAL TOURISM</a></li> </ul> </li> <li><a href='facts?id=facts'>FACTS</a> <ul> <li><a href="facts?id=AIR_GALAXY">Air Galaxy</a></li> <li><a href="facts?id=SHIPPING">Shipping</a></li> <li><a href="facts?id=HEALTH">Health Care </a></li> <li><a href="facts?id=LOGISTIC">Logistic</a></li> </ul> </li> <li><a href='our_team.php?content=Management_Body'>OUR TEAM</a> <ul> <li><a href="our_team.php?content=Management_Body">Management Body</a></li> <li><a href="our_team.php?content=Professionals">Professionals</a></li> <li><a href="our_team.php?content=Group_photo_Photo_gallery">Group photo/Photo gallery</a></li> </ul> </li> <li><a href='EXPLORE_US?id=who_are_we'>EXPLORE US</a> <ul> <li><a href="EXPLORE_US?id=who_are_we">who are we</a></li>  <li><a href="EXPLORE_US?id=Our_strength">Our strength</a></li> </ul> </li> <li><a href='contact'>Contact Us</a></li> </ul> </nav> </header> </html>），您可以在创建后向newParameters添加任何内容。

在对数组进行迭代时，您所要做的就是调用var在let内添加新条目：

appendElement()

Answer 3

如果您有2个阵列

async

你可以像这样组合它们

defer

如何使用for循环添加多个词典？

3 个答案: