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How to obtain uploaded image information (temporarily save path, name, size) through js and then pass it to the backend through ajax_javascript skills

Article Introduction：Recently, a friend asked me for advice on using js to obtain the information of uploaded images and then passing it to the backend through ajax. How to achieve this? After searching a lot of information on the Internet, the editor has compiled my solutions below and shared them with everyone. Friends who need them can refer to them.

2016-05-16 comment 0 1836

Analyze how to get the ID name of the current button or html

Article Introduction：What I did today was to upload a picture and click on the picture to delete it. Give the picture id randomly, get the picture id, and then delete the picture. Since the image ID is random, clicking on the img or clicking on the class will not work to obtain the ID. Finally, use the onclick event to obtain it. The js code is as follows: $("#pic").append("<img style='width:70px;margin:5px;height:70px;' id='"+num+"' onclick='upimg()'

2017-06-23 comment 0 1972

How to implement two-color characters in PPT_Operation tutorial to implement two-color characters in PPT

Article Introduction：Open the PPT and type text in the text box. In the example, it is [I am Chinese]. The size and font of the text can be adjusted as desired. Choose a color you like. The color chosen here is pink. Right-click the text box, select Save as picture, and select the image storage location in the dialog box. Here, the desktop is selected. In PPT, select Insert - Picture - From File - Find the picture you just saved. Change the color of the text in the original text box, here to blue. Right-click the inserted picture, select the Show Picture Tool, click the crop icon, drag down the black border above the picture to about half of the text, and click the crop icon again. Select the cropped picture, use the arrow keys on the small keyboard to move the picture, cover the same part of the text in the text box, and press

2024-04-17 comment 0 950

How to create a rotation animation on mBlockcode? Tutorial on how to create a rotation animation on mBlockcode

Article Introduction：First, open mBlockwork, click [Role], and click [Add]. Then, click [Upload Character] in the pop-up dialog box, select the animation picture to be added, select the added picture, and click [OK]. Then, move the picture to the appropriate position in the navigation window, drag and drop the program building blocks into the programming interface in the following order, and modify the appropriate parameters. Finally, click the little green flag to run.

2024-06-02 comment 0 1060

PHP+Ajax+JS implements multi-image upload ajax php post jquery ajax php ajax points

Article Introduction：ajax, php: PHP+Ajax+JS realizes multi-image upload: In the example of this article, we need to do an ajax multiple image upload in the wap station project. I made one with the js plug-in for your reference. The specific content is as follows /* ajax upload image */ var num = 0;//Click to delete the picture function onDelete(num){if($("#"+num).attr('src')!="__PUBLIC__/Home/images/jiazai.gif" && $(" #"+num).attr('src')!="

2016-07-29 comment 0 985

Free image upload PHP image upload class with image display

Article Introduction：Free image upload: Free image upload PHP image upload class with image display: This is a PHP file upload class with image display. In fact, it can be made into a function. But it is more fun to make it into a class.~~~~ It should be Use JS to verify the type of uploaded files. But I am too lazy to do it. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD /xhtml1-transitional.dtd">

2016-07-29 comment 0 1443

How to create a simple image distribution effect in CorelDRAW_Production method tutorial

Article Introduction：1. Open the CorelDRAW software and import the picture material to be processed. 2. Find the [Drawing Tool] in the toolbox, set the number of rows and columns of the drawing, drag it out in the canvas, right-click and select [Inside PowerClip] 3. Adjust the picture in Position in the drawing 4. Click [Cancel Group Object] above to break up the grid 5. Then use the selection tool to move the position of the small picture, double-click the rectangle tool, fill it with black as the background of the picture, select all, and right-click Click the palette to change the line outline color, so that the effect of evenly divided small distribution display is completed.

2024-04-22 comment 0 752

PHP image upload class with image display_PHP tutorial

Article Introduction：PHP image upload class with image display. This is a PHP file upload class with picture display. In fact, it can be made into a function. But it is more fun to make it into a class.~~~~ I should have used JS to verify the uploaded file type. But I was too lazy to do it.

2016-07-21 comment 0 977

How to shoot and upload videos on Xigua Video

Article Introduction：How to shoot and upload videos on Xigua Video, and how to set it up specifically, follow the editor to find out. After we found the Xigua Video app on our phone, we opened it and logged in to our personal account. After successfully logging in, click My below, and in the personal center interface, click the shooting icon in the upper right corner. After clicking, you will come to the shooting interface. At this time, we click on the white icon in the lower left corner. After clicking, the app will automatically load the video information on the phone. We can also slide left to find the video we need to upload. After selecting, click Continue in the upper right corner. After clicking, give the video a title based on the content of the video you uploaded, and then click Publish Now below. After clicking, we come to the My Upload interface, where we wait for the upload progress to be completed. upload speed

2024-06-14 comment 0 726

Vue Practical Combat: Image Upload Component Development

Article Introduction：Vue Practical Combat: Image Upload Component Development Introduction: Image upload is one of the common requirements in web development. This article will introduce how to use the Vue framework to develop a simple image upload component and provide specific code examples. 1. Requirements analysis Our image upload component should have the following functions: the user can select an image to upload; after clicking the upload button, the selected image will be uploaded to the server; the upload progress will be displayed and the function of canceling the upload will be provided; after the upload is completed , displays a prompt that the upload is successful, and provides a link to view the upload results.

2023-11-24 comment 0 1505

How to set audio file icon in ppt2013

Article Introduction：Open and run ppt2013. Click [Open other presentations] to open the PPT slide file that needs to be edited or modified. In the open PowerPoint program window, select the audio file icon, right-click the mouse, select the [Change Picture] option in the pop-up option box and click it. After clicking the [Change Picture] option, the [Insert Picture] dialog box will open. In the [Insert Picture] dialog box, click the [Browse] option button from the file options. In the [Insert Picture] dialog box, find the folder where the pictures are stored, select the picture file you want to insert, and then click the [Insert] button. After the picture is inserted, the effect of changing the icon can be seen on the audio file.

2024-04-17 comment 0 954

What is a picture converter? How to use a picture converter?

Article Introduction：Image converter supports various image formats: BMP, JPEG, PNG, TIF, GIF, PSD, ICO, PDF, etc. The picture converter supports ICO transparent color conversion and GIF dynamic picture conversion; changes the color, quality, brightness, contrast, DPI, etc. of the picture; adjusts the size and rotation of the picture according to the ratio or a custom value; adds custom watermarks, Artistic borders; preview renderings, what you see is what you get, the operation is simple and intuitive. What is an image converter? How to use image converter? 1. Start the software and import images: Open the image converter software, click the "Add Image" button in the upper left corner, and easily upload the image files you want to process. 2. Set the output path and format: In the "Settings" area on the right side of the interface, click

2024-07-31 comment 0 910

How to click on the WeChat applet to view the original image

Article Introduction：The WeChat applet implements the method of clicking to view the original image: first prepare a URL array to store the preview image and a URL array of the original image; then obtain the clicked index when clicking on the image; finally obtain the URL corresponding to the original image through the index and pass it in wx Just in the .previewImage() method.

2020-03-24 comment 0 6792

How to extract colors when the color picker is missing in ppt2010?

Article Introduction：How to extract colors when the color picker is missing in ppt2010: First open the slide, click the shortcut key [ctrl+alt+a]; then extract rgb on the green color of the picture; finally click [Font Color - Other Colors] and enter rgb. .

2020-07-09 comment 0 14427

How to fill a layer in PS

Article Introduction：How to fill a layer in PS: First open PS, select a picture that needs to be filled with color; then press the "CTRL+J" keys to copy a new layer and select an area that needs to be filled with color; then click the "Color Picker", Select a color and click "OK".

2020-02-13 comment 0 22720

Detailed method to create black stroke chalk effect in PPT

Article Introduction：Set the slide background to black so the effect stands out. Insert a horizontal text box to enter text, set it to bold, size 166, bold, and centered. Right-click [Format Shape] and set [Newsprint] in Text Fill [Picture or Texture Fill]. Copy the text box and paste it as an image. Keep the original text box for later use. Click on the picture to bring up [Picture Tools] and select [Chalk Sketch] in the artistic effect. Set the font of the original text box to red, and follow the same steps to set it to the [Crayon Smoothing] effect. The two text pictures are stacked left and right, with red on top and white on the bottom, and combined together. Finish.

2024-06-02 comment 0 397

How to implement collection function and switch colors in tp5

Article Introduction：How tp5 implements the collection function and can switch colors: In the HTML page, the bootstrap icon is referenced; css style; js; in the controller, when the icon changes color, click to cancel the collection, and click when the picture has no color. It's a collection...

2020-04-28 comment 0 2896

The location of WPS text color picker and quick color picking tutorial

Article Introduction：We often set the color of text in WPS text, but some documents have pictures. You want to set the text to the same color as the picture, but you don’t know how to pick the color. At this time, you can use WPS picker. The color device function is now available. Let’s teach you how to use it. 【How to use】When opening a document, please use WPSOffice. Click the "Start" option above and select "Font Color." Next, click on the Color Picker. Click the point where you want to pick the color to complete the color pick. After selecting the color, click the font color again to set the text to the same color as the picture.

2024-01-09 comment 0 5713

How to set arc text effect in ppt2013

Article Introduction：Open a slide and click [Format], select [Slide Layout] in the drop-down menu, find [Slide Layout], drag down the mouse, find [Text and Content Layout], select the layout according to your needs, and put the mouse On the icon, the layout type will be displayed. Click with the mouse to select [Click here to add a title] and enter text in the text box. Find [Insert Image] and click it. Select the picture you want and select [Insert]. Click the mouse to select the picture, and 8 hollow circles will appear on the picture. Drag the mouse to adjust the size of the picture. Select the text box and enter the text you want.

2024-04-17 comment 0 1003

How to create a puzzle effect in PPT_The table function can help you

Article Introduction：First we want to insert an image and insert a table that is exactly the same size as the image. The number of cells in the table represents how many pieces you want to divide the picture into. Please click CTRL + After confirmation, we select the table and CTRL+X again to cut it, then select [Paste Special] in the upper left corner of the paste, and then select the picture (enhanced metafile). In this way, the picture is divided into small pieces, and then we right-click on it and select [Group]-[Ungroup], and then repeat this step twice. In this way, the picture will be divided separately. You can drag

2024-04-26 comment 0 782