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<html><head><script src="https://code.jquery.com/jquery-1.11.3.js"></script> <meta charset="utf-8"> <title>JS Bin</title></head><body><img src="http://www.w3school.com.cn/i/eg_smile.gif"><button>1180像素</button> //单击一次图片就变大 再单击一次图片又恢复刚才的样子。怎么玩？ <script> $("button").click(function(){ //单击一次图片就变大 再单击一次图片又恢复刚才的样子。怎么玩？ if($("img").attr("width","180")){ $("img").attr("width","280"); }else{ $("img").attr("width","180"); } //我做了个判断 在按钮单击2次反应吗？ }); </script></body></html>
Output
You can jump to the latest bin by adding /latest to your URL
Keyboard Shortcuts
| Shortcut | Action |
|---|---|
| ctrl + [num] | Toggle nth panel |
| ctrl + 0 | Close focused panel |
| ctrl + enter | Re-render output. If console visible: run JS in console |
| Ctrl + l | Clear the console |
| ctrl + / | Toggle comment on selected lines |
| ctrl + ] | Indents selected lines |
| ctrl + [ | Unindents selected lines |
| tab | Code complete & Emmet expand |
| ctrl + shift + L | Beautify code in active panel |
| ctrl + s | Save & lock current Bin from further changes |
| ctrl + shift + s | Open the share options |
| ctrl + y | Archive Bin |
Complete list of JS Bin shortcuts | |
JS Bin URLs
| URL | Action |
|---|---|
| / | Show the full rendered output. This content will update in real time as it's updated from the /edit url. |
| /edit | Edit the current bin |
| /watch | Follow a Code Casting session |
| /embed | Create an embeddable version of the bin |
| /latest | Load the very latest bin (/latest goes in place of the revision) |
| /[username]/last | View the last edited bin for this user |
| /[username]/last/edit | Edit the last edited bin for this user |
| /[username]/last/watch | Follow the Code Casting session for the latest bin for this user |
| /quiet | Remove analytics and edit button from rendered output |
| .js | Load only the JavaScript for a bin |
| .css | Load only the CSS for a bin |
Except for username prefixed urls, the url may start with http://jsbin.com/abc and the url fragments can be added to the url to view it differently. | |
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