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比如我在网页里 放一个微信号 45648 1231 456 然后网页加载一次怎么让 这几个微信号轮换呢?
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<html> <head></head> <body> <p id="wechat"></p> <script> var wechatIds = ['45648', ' 1231', '456'], wechatIdsKey = 0; if (window.localStorage.getItem('wechatIdsKey') == null) { window.localStorage.setItem('wechatIdsKey', 0); } else { wechatIdsKey = window.localStorage.getItem('wechatIdsKey'); wechatIdsKey++; if (wechatIdsKey >= wechatIds.length) { wechatIdsKey = 0; } window.localStorage.setItem('wechatIdsKey', wechatIdsKey); } document.getElementById('wechat').innerHTML = wechatIds[wechatIdsKey]; </script> </body> </html>
多个:
<html> <head></head> <body> <p class="wechat"></p> <p class="wechat"></p> <p class="wechat"></p> <script> var wechatIds = ['45648', ' 1231', '456'], wechatIdsKey = 0; if (window.localStorage.getItem('wechatIdsKey') == null) { window.localStorage.setItem('wechatIdsKey', 0); } else { wechatIdsKey = window.localStorage.getItem('wechatIdsKey'); wechatIdsKey++; if (wechatIdsKey >= wechatIds.length) { wechatIdsKey = 0; } window.localStorage.setItem('wechatIdsKey', wechatIdsKey); } for (var i = 0, l = document.getElementsByClassName('wechat').length; i < l; i++) { document.getElementsByClassName('wechat')[i].innerHTML = wechatIds[wechatIdsKey]; } </script> </body> </html>
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