HarmonyOS 替换字符串

参考demo如下：

@Entry
@Component
struct ReplaceString {
  @State str: string = '1%2%3%4%5%6';

  build() {
    Row() {
      Column() {
        Text(`${this.str}`)
          .fontSize(50)
          .fontWeight(FontWeight.Bold)
          .onClick(()=>{
            // this.str=this.str.replace(RegExp("%", "g"),"*");//'1*2*3*4*5*6'
            this.str=this.str.replace(RegExp("\\%", "g"),"*");//'1*2*3*4*5*6'
          })
      }
      .width('100%')
    }
    .height('100%')
  }
}