第1个回答 2013-03-22
首先将textbox设置为可以多行:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/4ec2d5628535e5ddd224c2d277c6a7efce1b62b6?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
然后添加代码:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/8ad4b31c8701a18b469375429f2f07082838fe47?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
每当点击一次按钮,就会添加一行:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d0c8a786c9177f3e0e6a9b0071cf3bc79f3d5664?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
本回答被网友采纳
第2个回答 推荐于2018-02-27
textbox 中加属性 TextMode="MultiLine"
然后按楼上这位的方法就好,字符串间加 "\r\n"本回答被提问者和网友采纳
第3个回答 2017-06-14
在换行的地方加上"\r\n"
比如:
textbox1.Text += "123" +"\r\n"
第4个回答 2013-03-22
加个“\r\n”
this.text1.Text += 变量+“\r\n”;