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commit：添加单体工程开源版本
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Jerry
222
orange-demo-single-web/src/utils/index.js
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222
orange-demo-single-web/src/utils/index.js
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import JSEncrypt from 'jsencrypt';
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/**
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* 列表数据转换树形数据
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* @param {Array} data 要转换的列表
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* @param {String} id 主键字段字段名
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* @param {String} pid 父字段字段名
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* @returns {Array} 转换后的树数据
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*/
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export function treeDataTranslate (data, id = 'id', pid = 'parentId') {
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var res = []
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var temp = {}
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for (var i = 0; i < data.length; i++) {
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temp[data[i][id]] = data[i]
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}
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for (var k = 0; k < data.length; k++) {
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if (temp[data[k][pid]] && data[k][id] !== data[k][pid]) {
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if (!temp[data[k][pid]]['children']) {
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temp[data[k][pid]]['children'] = []
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}
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if (!temp[data[k][pid]]['_level']) {
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temp[data[k][pid]]['_level'] = 1
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}
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data[k]['_level'] = temp[data[k][pid]]._level + 1
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data[k]['_parent'] = data[k][pid]
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temp[data[k][pid]]['children'].push(data[k])
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} else {
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res.push(data[k])
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}
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}
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return res
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}
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/**
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* 获取字符串字节长度（中文算2个字符）
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* @param {String} str 要获取长度的字符串
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*/
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export function getStringLength (str) {
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return str.replace(/[\u4e00-\u9fa5\uff00-\uffff]/g, '**').length
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}
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/**
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* 获取uuid
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*/
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export function getUUID () {
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return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, c => {
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return (c === 'x' ? (Math.random() * 16 | 0) : ('r&0x3' | '0x8')).toString(16)
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});
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}
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/**
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* 大小驼峰变换函数
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* @param name 要转换的字符串
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* @param type 转换的类型0：转换成小驼峰，1：转换成大驼峰
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*/
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export function nameTranslate (name, type) {
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name = name.toLowerCase();
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let nameArray = name.split('_');
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nameArray.forEach((item, index) => {
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if (index === 0) {
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name = type === 1 ? item.slice(0, 1).toUpperCase() + item.slice(1) : item;
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} else {
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name = name + item.slice(0, 1).toUpperCase() + item.slice(1);
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}
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});
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nameArray = name.split('-');
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nameArray.forEach((item, index) => {
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if (index === 0) {
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name = type === 1 ? item.slice(0, 1).toUpperCase() + item.slice(1) : item;
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} else {
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name = name + item.slice(0, 1).toUpperCase() + item.slice(1);
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}
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});
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return name;
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}
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/**
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* 通过id从树中获取指定的节点
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* @param {Object} node 根节点
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* @param {String|Nubmer} id 键值
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* @param {Array} list 保存查询路径
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* @param {String} idKey 主键字段名
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* @param {String} childKey 子节点字段名
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*/
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function findNode (node, id, list, idKey = 'id', childKey = 'children') {
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if (Array.isArray(list)) list.push(node[idKey]);
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if (node[idKey] === id) {
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return node;
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}
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if (node[childKey] != null && Array.isArray(node[childKey])) {
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for (let i = 0; i < node[childKey].length; i++) {
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let tempNode = findNode(node[childKey][i], id, list, idKey, childKey);
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if (tempNode) return tempNode;
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}
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}
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if (Array.isArray(list)) list.pop();
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}
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/**
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* 通过id返回从根节点到指定节点的路径
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* @param {Array} treeRoot 树根节点数组
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* @param {*} id 要查询的节点的id
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* @param {*} idKey 主键字段名
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* @param {*} childKey 子节点字段名
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*/
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export function findTreeNodePath (treeRoot, id, idKey = 'id', childKey = 'children') {
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let tempList = [];
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for (let i = 0; i < treeRoot.length; i++) {
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if (findNode(treeRoot[i], id, tempList, idKey, childKey)) {
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return tempList;
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}
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}
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return [];
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}
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/**
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* 通过id从树中查找节点
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* @param {Array} treeRoot 根节点数组
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* @param {*} id 要查找的节点的id
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* @param {*} idKey 主键字段名
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* @param {*} childKey 子节点字段名
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*/
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export function findTreeNode (treeRoot, id, idKey = 'id', childKey = 'children') {
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for (let i = 0; i < treeRoot.length; i++) {
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let tempNode = findNode(treeRoot[i], id, undefined, idKey, childKey);
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if (tempNode) return tempNode;
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}
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}
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/**
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* 把Object转换成query字符串
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* @param {Object} params 要转换的Object
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*/
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export function objectToQueryString (params) {
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if (params == null) {
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return null;
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} else {
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return Object.keys(params).map((key) => {
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return `${key}=${params[key]}`;
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}).join('&');
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}
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}
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/**
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* 从数组中查找某一项
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* @param {Array} list 要查找的数组
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* @param {String} id 要查找的节点id
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* @param {String} idKey 主键字段名（如果为null则直接比较）
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* @param {Boolean} removeItem 是否从数组中移除查找到的节点
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* @returns {Object} 找到返回节点，没找到返回undefined
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*/
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export function findItemFromList (list, id, idKey, removeItem = false) {
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if (Array.isArray(list) && list.length > 0 && id != null) {
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for (let i = 0; i < list.length; i++) {
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let item = list[i];
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if (((idKey == null || idKey === '') && item === id) || (idKey != null && item[idKey] === id)) {
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if (removeItem) list.splice(i, 1);
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return item;
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}
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}
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}
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return null;
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}
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/**
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* 将数据保存到sessionStorage
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* @param {*} key sessionStorage的键值
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* @param {*} value 要保存的数据
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*/
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export function setObjectToSessionStorage (key, value) {
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if (key == null || key === '') return false;
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if (value == null) {
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window.sessionStorage.removeItem(key);
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return true;
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} else {
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let jsonObj = {
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data: value
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}
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window.sessionStorage.setItem(key, JSON.stringify(jsonObj));
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return true;
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}
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}
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/**
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* 从sessionStorage里面获取数据
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* @param {String} key 键值
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* @param {*} defaultValue 默认值
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*/
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export function getObjectFromSessionStorage (key, defaultValue) {
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let jsonObj = null;
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try {
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jsonObj = JSON.parse(window.sessionStorage.getItem(key));
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jsonObj = (jsonObj || {}).data;
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} catch (e) {
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jsonObj = defaultValue;
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};
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return (jsonObj != null) ? jsonObj : defaultValue;
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}
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/**
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* 判读字符串是否一个数字
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* @param {String} str 要判断的字符串
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*/
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export function isNumber (str) {
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let num = Number.parseFloat(str);
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if (Number.isNaN(num)) return false;
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return num.toString() === str;
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}
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/**
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* 生成随机数
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* @param {Integer} min 随机数最小值
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* @param {Integer} max 随机数最大值
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*/
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export function random (min, max) {
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let base = Math.random();
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return min + base * (max - min);
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}
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/**
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* 加密
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* @param {*} value 要加密的字符串
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*/
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const publicKey = 'MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCpC4QMnbTrQOFriJJCCFFWhlruBJThAEBfRk7pRx1jsAhyNVL3CqJb0tRvpnbCnJhrRAEPdgFHXv5A0RrvFp+5Cw7QoFH6O9rKB8+0H7+aVQeKITMUHf/XMXioymw6Iq4QfWd8RhdtM1KM6eGTy8aU7SO2s69Mc1LXefg/x3yw6wIDAQAB';
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export function encrypt (value) {
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if (value == null || value === '') return null;
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let encrypt = new JSEncrypt();
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encrypt.setPublicKey(publicKey);
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return encodeURIComponent(encrypt.encrypt(value));
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}
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