微博字数限制，可以更改为长微博就没有字数限制了。
新浪微博更改长微博的办法如下：
1、在浏览器中打开新浪微博后，点击登录。
/iknow-pic.cdn.bcebos.com/960a304e251f95ca33bf6e34c4177f3e660952ee"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/960a304e251f95ca33bf6e34c4177f3e660952ee?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/960a304e251f95ca33bf6e34c4177f3e660952ee"/>
2、登录成功后，找到微博发布框。
/iknow-pic.cdn.bcebos.com/4d086e061d950a7bedd15e4707d162d9f3d3c949"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/4d086e061d950a7bedd15e4707d162d9f3d3c949?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/4d086e061d950a7bedd15e4707d162d9f3d3c949"/>
3、在下方找到“长微博”按钮，点击。
/iknow-pic.cdn.bcebos.com/2fdda3cc7cd98d10a2e5f3b32c3fb80e7bec907b"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/2fdda3cc7cd98d10a2e5f3b32c3fb80e7bec907b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/2fdda3cc7cd98d10a2e5f3b32c3fb80e7bec907b"/>
4、然后在弹出的长微博编辑框中，输入编辑内容就可以了。
/iknow-pic.cdn.bcebos.com/00e93901213fb80ed30a9d553bd12f2eb838945d"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/00e93901213fb80ed30a9d553bd12f2eb838945d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/00e93901213fb80ed30a9d553bd12f2eb838945d"/>
腾讯微博更改长微博的办法如下：
1、在浏览器中，打开腾讯微博。
/iknow-pic.cdn.bcebos.com/d4628535e5dde71122a5bc74aaefce1b9d166139"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/d4628535e5dde71122a5bc74aaefce1b9d166139?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/d4628535e5dde71122a5bc74aaefce1b9d166139"/>
2、在腾讯微博页面右侧，填写登录腾讯微博的信息。
/iknow-pic.cdn.bcebos.com/ae51f3deb48f8c5428693aad37292df5e1fe7ffe"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/ae51f3deb48f8c5428693aad37292df5e1fe7ffe?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/ae51f3deb48f8c5428693aad37292df5e1fe7ffe"/>
3、登陆成功后，在腾讯微博首页后找到发布微博框下方的“更多”按钮。
/iknow-pic.cdn.bcebos.com/dbb44aed2e738bd489664db3ac8b87d6267ff9e9"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/dbb44aed2e738bd489664db3ac8b87d6267ff9e9?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/dbb44aed2e738bd489664db3ac8b87d6267ff9e9"/>
4、点击“更多”后，在弹出的下拉菜单中找到“长微博”点击。
/iknow-pic.cdn.bcebos.com/0d338744ebf81a4c2511124bda2a6059252da615"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/0d338744ebf81a4c2511124bda2a6059252da615?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/0d338744ebf81a4c2511124bda2a6059252da615"/>
5、在弹出的长微博编辑框中，编辑长微博即可。
/iknow-pic.cdn.bcebos.com/80cb39dbb6fd5266d5efc396a618972bd507366f"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/80cb39dbb6fd5266d5efc396a618972bd507366f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/80cb39dbb6fd5266d5efc396a618972bd507366f"/>