peisweb/src/utlis/validate.js

const reg = /\d+(\.\d+)?$/;  //浮点型正则
import { Message } from 'element-ui';
//验证参考范围
export const yzstr = (value) => {
    let isyz = false;
    if (value.indexOf("-") != -1) {
        var sary = value.split('-');
        if (sary.length == 2) {
            for (var i = 0; i < sary.length; i++) {
                if (!reg.test(sary[i])) {
                    isyz = false
                    return false;
                }
            }
            //成功
            isyz = true
        }
        else {
            isyz = false
            Message.error('输入格式不正确');
            //失败
        }
    }
    else if (value.indexOf(">=") == 0) {

        let s1 = value.substring(2)

        if (!reg.test(s1)) {
            isyz = false

        }
        else {
            isyz = true

        }
    }
    else if (value.indexOf("<=") == 0) {
        let s1 = value.substring(2)

        if (!reg.test(s1)) {
            isyz = false

        }
        else {
            isyz = true
        }
    }
    else {
        //失败
        Message.error('输入格式不正确');
        isyz = false
    }

    return isyz;
}