Bug Type: Component

Environment

• Vue Version: 3.3.4
• Element Plus Version: 2.3.9
• Browser / OS: Intel(R) Xeon(R) E-2136 CPU @ 3.30GHz 3.31 GHz
• Build Tool: Webpack

Reproduction

Related Component

• el-input-number

Reproduction Link

Docs

Steps to reproduce

打开el-input-number组件 输入 ++-- 任何几位数学运算符

What is Expected?

不可以输入数学运算符

What is actually happening?

可以输入数学运算符

Additional comments

(empty)