Element UI version

2.13.2

OS/Browsers version

win10 chomd版本 84.0.4147.105

Vue version

2.6.1

Reproduction Link

https://codepen.io/zym_java/pen/GRqxzJq

Steps to reproduce

arraySpanMethod({ row, column, rowIndex, columnIndex }){//当前行row、当前列column、当前行号rowIndex、当前列号columnIndex
if(columnIndex==1){
console.log(rowIndex, columnIndex)
this.indexCount = this.indexCount this.indexCount1-1
}
}

What is Expected?

合并相关的行

What is actually happening?

出现无限循环