我会给予\ x1b] 0; test\x07尝试（注意 0 而不是 2 ）。

I would give "\x1b]0;test\x07" a try (note the 0 instead of 2).

有打开bug 关于Konsole没有正确处理xterm转义序列;也许它不会工作，直到它被修复。

There is an open bug about Konsole not correctly treating xterm escape sequences; maybe it won't work at all until it is fixed.