const getRandomNum = (len, radix) => { // getRandomNum(24, 16)   const chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('')   const uuid = []   radix = radix || chars.length   if (len) {     // Compact form     for (let i = 0; i < len; i++) uuid[i] = chars[0 | Math.random() * radix ]   } else {     // rfc4122, version 4 form     let r     // rfc4122 requires these characters     uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-'     uuid[14] = '4'     // Fill in random data.  At i==19 set the high bits of clock sequence as     // per rfc4122, sec. 4.1.5     for (let i = 0; i < 36; i++) {       if (!uuid[i]) {         r = 0 | Math.random() * 16         uuid[i] = chars[(i === 19) ? (r & 0x3) | 0x8 : r]       }     }   }   return uuid.join('') + new Date().getTime() } const msgBase = (msgText, bc) => { uni.showToast({ title: msgText, icon: 'none', duration: 2000 }).then(() => { if (bc) bc() }) } const confirmMsgFn = (msgText, successBc, errorBc, title = '提示') => { uni.showModal({ title, content: msgText, success: function (res) { if (res.confirm) { if (successBc) successBc() } else if (res.cancel) { if (errorBc) errorBc() } } }) } export { msgBase, confirmMsgFn, getRandomNum, }