el-input只能输入正整数

<el-form-item label="团队人数"prop="">

       <el-input v-model="personNum" @input="personNum=personNum.replace(/^(0+)|[^\d]/g,'')"></el-input>

</el-form-item>

@input="scope.row.ratio=scope.row.ratio.replace(/[^\d^\.]+/g, '')" 正数有小数点