你的理由将使所有现有的19个StringBuilder重载 无用。 问题是stringBuilder1.ToString（）创建了一个新的字符串我 想要避免。 StringBuilder无用。问题是stringBuilder1.ToString（）创建了一个新的字符串我我想避免。 Why isn''t there an StringBuilder.Append() overload with a StringBuilder asargument?Is there a reason that I missed? 解决方案Your "reason" would make all of the existing 19 overloads of StringBuilder"useless".The problem is that stringBuilder1.ToString() creates a new string which Iwant to avoid.StringBuilder "useless". The problem is that stringBuilder1.ToString() creates a new string which I want to avoid. 这篇关于为什么没有使用StringBuilder作为参数的StringBuilder.Append重载？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！