宜人贷项目里-----正则匹配input输入月份规则

changeVal(e){    let $val = e.currentTarget.value;    e.currentTarget.value = $val.replace(/[^d{2}/{1}d{2}$]/ig,‘‘)    let inputVal = e.currentTarget.value    this.all = true;    if(/^[2-9]/ig.test(inputVal)){        e.currentTarget.value = ‘0‘+inputVal        this.all1 = true;    }    if(/^[1]/ig.test(inputVal)){        e.currentTarget.value = e.currentTarget.value.replace(/^1[^0-2|/]/ig,‘1‘)        this.all1 = true;    }    if(/^[0]/ig.test(inputVal)){        e.currentTarget.value = e.currentTarget.value.replace(/^0[^1-9|/]/ig,‘0‘)        this.all1 = true;    }    if(e.currentTarget.value.length == 2 && e.keyCode !=8 && !/^1//ig.test(e.currentTarget.value)){        e.currentTarget.value = e.currentTarget.value + ‘/‘        this.all2 = true;    }    if(e.currentTarget.value.length >= 5){        e.currentTarget.value = e.currentTarget.value.substr(0,5)        this.all3 = true;    }    e.currentTarget.value = e.currentTarget.value.replace(/[^d{2}/{1}d{2}$]/ig,‘‘)    this.getDate = e.currentTarget.value    if(this.all && this.all1 && this.all2 && this.all3){        this.submitBtnFrag();    }}