<el-input  v-model.number="formData.projectNum"  type='number' min="1" size="small" placeholder="输入数量"

                             onkeyup="if(this.value.length==1){this.value=this.value.replace(/[^1-9]/g,'')}

                            else{this.value=this.value.replace(/\D/g,'')}"

                             onafterpaste="if(this.value.length==1){this.value=this.value.replace(/[^1-9]/g,'')}

                            else{this.value=this.value.replace(/\D/g,'')}"/>