javascript - 让用户能够点击图片并上传自己的图片

Question

我有一个由两个人组成的个人资料页面。我希望用户能够点击两张图片中的一张并将他们自己的图片上传到其中一个图片框

    textarea {
        border: none;
        overflow: auto;
        outline: none;

        -webkit-box-shadow: none;
        -moz-box-shadow: none;
        box-shadow: none;
    }
    :root {
        font-size: 10px;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }
    sans-serif;
        min-height: 100vh;
        background-color: #fafafa;
        color: #262626;
        padding-bottom: 3rem;
    }


    img {
        display: block;
    }

    .container {
      
        width: 400px;
        margin-left: auto;
        margin-right: auto;
        max-width: 93.5rem;
        margin: 0 auto;
        padding: 0 2rem;
    }

    .btn {
        display: inline-block;
        font: inherit;
        background: none;
        border: none;
        color: inherit;
        padding: 0;
        cursor: pointer;
    }

    .btn:focus {
        outline: 0.5rem auto #4d90fe;
    }

    .visually-hidden {
        position: absolute !important;
        height: 1px;
        width: 1px;
        overflow: hidden;
        clip: rect(1px, 1px, 1px, 1px);
    }

    /* Profile Section */

    .profile {
        padding: 5rem 0;
    }

    .profile::after {
        content: "";
        display: block;
        clear: both;
    }


    .profile-user-settings,
    .profile-stats,
    .profile-bio {
        float: left;
        width: calc(66.666% - 2rem);
    }

    .profile-user-settings {
        margin-top: 1.1rem;
    }

    .profile-user-name {
        display: inline-block;
        font-size: 3.2rem;
        font-weight: 300;
    }

    .profile-edit-btn {
        font-size: 1.4rem;
        line-height: 1.8;
        border: 0.1rem solid #dbdbdb;
        border-radius: 0.3rem;
        padding: 0 2.4rem;
        margin-left: 2rem;
    }





    .profile-stats li {
        display: inline-block;
        font-size: 1.6rem;
        line-height: 1.5;
        margin-right: 4rem;
        cursor: pointer;
    }

    .profile-stats li:last-of-type {
        margin-right: 0;
    }



    .profile-real-name,
    .profile-stat-count,
    .profile-edit-btn {
        font-weight: 600;
    }

    /* Gallery Section */

    .gallery {
        display: flex;
        flex-wrap: wrap;
        margin: -1rem -1rem;
        padding-bottom: 3rem;
    }

    .gallery-item {
        position: relative;
        flex: 1 0 22rem;
        margin: 1rem;
        color: #fff;
        cursor: pointer;
    }

    .gallery-item:hover .gallery-item-info,
    .gallery-item:focus .gallery-item-info {
        display: flex;
        justify-content: center;
        align-items: center;
        position: absolute;
        top: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.3);
    }

    .gallery-item-info {
        display: none;
    }

    .gallery-item-info li {
        display: inline-block;
        font-size: 1.7rem;
        font-weight: 600;
    }

    .gallery-item-likes {
        margin-right: 2.2rem;
    }

    .gallery-item-type {
        position: absolute;
        top: 1rem;
        right: 1rem;
        font-size: 2.5rem;
        text-shadow: 0.2rem 0.2rem 0.2rem rgba(0, 0, 0, 0.1);
    }

    .fa-clone,
    .fa-comment {
        transform: rotateY(180deg);
    }

    .gallery-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }



    /* Media Query */

    @media screen and (max-width: 40rem) {
        .profile {
            display: flex;
            flex-wrap: wrap;
            padding: 4rem 0;
        }

        .profile::after {
            display: none;
        }

        .profile-image,
        .profile-user-settings,
        .profile-bio,
        .profile-stats {
            float: none;
            width: auto;
        }


        .profile-user-settings {
            flex-basis: calc(100% - 10.7rem);
            display: flex;
            flex-wrap: wrap;
            margin-top: 1rem;
        }

        .profile-user-name {
            font-size: 2.2rem;
        }

        .profile-edit-btn {
            order: 1;
            padding: 0;
            text-align: center;
            margin-top: 1rem;
        }

        .profile-edit-btn {
            margin-left: 0;
        }

        .profile-bio {
            font-size: 1.4rem;
            margin-top: 1.5rem;
        }

        .profile-edit-btn,
        .profile-bio,
        .profile-stats {
            flex-basis: 100%;
        }

        .profile-stats {
            order: 1;
            margin-top: 1.5rem;
        }

        .profile-stats ul {
            display: flex;
            text-align: center;
            padding: 1.2rem 0;
            border-top: 0.1rem solid #dadada;
            border-bottom: 0.1rem solid #dadada;
        }

        .profile-stats li {
            font-size: 1.4rem;
            flex: 1;
            margin: 0;
        }

        .profile-stat-count {
            display: block;
        }
    }

    /* Spinner Animation */

    @keyframes loader {
        to {
            transform: rotate(360deg);
        }
    }

    /*

 

    @supports (display: grid) {
        .profile {
            display: grid;
            grid-template-columns: 1fr 2fr;
            grid-template-rows: repeat(3, auto);
            grid-column-gap: 3rem;
            align-items: center;
        }

        .profile-image {
            grid-row: 1 / -1;
        }

        .gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(22rem, 1fr));
            grid-gap: 2rem;
        }

        .profile-image,
        .profile-user-settings,
        .profile-stats,
        .profile-bio,
        .gallery-item,
        .gallery {
            width: auto;
            margin: 0;
        }

        @media (max-width: 40rem) {
            .profile {
                grid-template-columns: auto 1fr;
                grid-row-gap: 1.5rem;
            }

            .profile-image {
                grid-row: 1 / 2;
            }

            .profile-user-settings {
                display: grid;
                grid-template-columns: auto 1fr;
                grid-gap: 1rem;
            }

            .profile-edit-btn,
            .profile-stats,
            .profile-bio {
                grid-column: 1 / -1;
            }

            .profile-user-settings,
            .profile-edit-btn,
            .profile-settings-btn,
            .profile-bio,
            .profile-stats {
                margin: 0;
            }
        }
    }
    @import url(https://fonts.googleapis.com/css?family=Raleway:400,200,300,800);
    @import url(https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css);
    figure.snip0056 {
      font-family: 'Raleway', Arial, sans-serif;
      position: relative;
      overflow: hidden;
      margin: 10px;
      min-width: 380px;
      max-width: 480px;
      width: 100%;
      background: #ffffff;
      color: #000000;
    }
    figure.snip0056 * {
      -webkit-box-sizing: border-box;
      box-sizing: border-box;
    }
    figure.snip0056 > img {
      width: 50%;
      border-radius: 50%;
      border: 4px solid #ffffff;
      -webkit-transition: all 0.35s ease-in-out;
      transition: all 0.35s ease-in-out;
      -webkit-transform: scale(1.6);
      transform: scale(1.6);
      position: relative;
      float: right;
      right: -15%;
      z-index: 1;
    }
    figure.snip0056 figcaption {
      padding: 20px 30px 20px 20px;
      position: absolute;
      left: 0;
      width: 50%;
    }
    figure.snip0056 figcaption h2,
    figure.snip0056 figcaption p {
      margin: 0;
      text-align: left;
      padding: 10px 0;
      width: 100%;
    }
    figure.snip0056 figcaption h2 {
      font-size: 1.3em;
      font-weight: 300;
      text-transform: uppercase;
      border-bottom: 1px solid rgba(0, 0, 0, 0.2);
    }
    figure.snip0056 figcaption h2 span {
      font-weight: 800;
    }
    figure.snip0056 figcaption p {
      font-size: 0.9em;
      opacity: 0.8;
    }
    figure.snip0056 figcaption .icons {
      width: 100%;
      text-align: left;
    }
    figure.snip0056 figcaption .icons i {
      font-size: 26px;
      padding: 5px;
      top: 50%;
      color: #000000;
    }
    figure.snip0056 figcaption a {
      opacity: 0.3;
      -webkit-transition: opacity 0.35s;
      transition: opacity 0.35s;
    }
    figure.snip0056 figcaption a:hover {
      opacity: 0.8;
    }
    figure.snip0056 .position {
      width: 100%;
      text-align: left;
      padding: 15px 30px;
      font-size: 0.9em;
      opacity: 1;
      font-style: italic;
      color: #ffffff;
      background: #000000;
      clear: both;
    }
    figure.snip0056.blue .position {
      background: #20638f;
    }
    figure.snip0056.red .position {
      background: #962d22;
    }
    figure.snip0056.yellow .position {
      background: #bf6516;
    }
    figure.snip0056:hover > img,
    figure.snip0056.hover > img {
      right: -12%;
    }
    @import url('//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css');

    #social {
      position: absolute;
      right:    0;
      bottom:   0;
      margin: 20px 10px;
      text-align: center;
    }

    .smGlobalBtn { /* global button class */
        display: inline-block;
        position: relative;
        cursor: pointer;
        width: 50px;
        height: 50px;
        border:2px solid #ddd; /* add border to the buttons */
        box-shadow: 0 3px 3px #999;
        padding: 0px;
        text-decoration: none;
        text-align: center;
        color: #fff;
        font-size: 25px;
        font-weight: normal;
        line-height: 2em;
        border-radius: 27px;
        -moz-border-radius:27px;
        -webkit-border-radius:27px;
    }

    /* facebook button class*/
    .facebookBtn{
        background: #4060A5;
    }

    .facebookBtn:before{ /* use :before to add the relevant icons */
        font-family: "FontAwesome";
        content: "\f09a"; /* add facebook icon */
    }

    .facebookBtn:hover{
        color: #4060A5;
        background: #fff;
        border-color: #4060A5; /* change the border color on mouse hover */
    }

    /* twitter button class*/
    .twitterBtn{
        background: #00ABE3;
    }

    .twitterBtn:before{
          font-family: "FontAwesome";
          content: "\f099"; /* add twitter icon */
          
    }

    .twitterBtn:hover{
          color: #00ABE3;
          background: #fff;
          border-color: #00ABE3;
    }


    /* instagram button class*/
    .instagramBtn{
        background: #4169E1;
    }

    .instagramBtn:before{
          font-family: "FontAwesome";
          content: "\f16d"; /* add instagram icon */
    }

    .instagramBtn:hover{
          color: #00FFFF;
          background: #fff;
          border-color: #4169E1;
    }

    <div class="container">

      <div class="profile">

        <form action="testing.php" method="post">
          <textarea name="text2" rows="2" cols=0> Family Name</textarea><br>
        </form>

        <button class="btn profile-edit-btn">Edit Profile</button>

      </div>
      <!-- End of profile section -->

    </div>
    <!-- End of container -->

    </header>

    <main>

      <div class="container">
        <figure class="snip0056">
          <figcaption>
            <textarea name="text2" rows="2" cols=0>Name(john Doe)</textarea>
            <textarea name="text3" rows="8" cols=20>Bio,Social media, Favorite Quote,A letter to your partner.</textarea>
            </p>

          </figcaption> <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/331810/sq-sample8.jpg" alt="profilepic1" id="imgClickAndChange" onclick="changeImage()"  />

          <div class="position">
            <textarea name="text4" rows="1" cols=9>Proffession</textarea>
          </div>
          </h3>
        </figure>
        <figure class="snip0056 yellow">
          <figcaption>
            <textarea name="text5" rows="2" cols=0>Name(jane Doe)</textarea>
             <textarea name="text6" rows="8" cols=20>Bio,Social media, Favorite Quote,A letter to your partner.</textarea>

          </figcaption><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/331810/sq-sample9.jpg" alt="sample9" />
          <div class="position">
           <textarea name="text4" rows="1" cols=9>Title</textarea>
        </figure>
        <div id="social">
          <a class="facebookBtn smGlobalBtn" href="https://facebook.com/ngurah.dimas.94"></a>
          <a class="twitterBtn smGlobalBtn" href="https://twitter.com/ngurahdimas"></a>

          <a class="instagramBtn smGlobalBtn" href="http://instagram.com/ngurahdimas_"></a>
        </div>

    </main>

Answer 1

使用标签并隐藏上传按钮

<form id='form' method='post' action='/'>
    <label for='img1'>
        <input id='img1' type='file' style='display: none;' />
        <img id='img1_preview' src='' />
    </label>

    <input type='submit' value='Update' />
</form>

当你点击img，同时点击label会自动触发input file弹出上传图片窗口，点击submit提交表单。最好使用 JS 捕获图像并使用 ajax 上传，但响应速度更快。