init

2023-02-28 14:02:39 +08:00
commit 9b86baa44f
170 changed files with 29943 additions and 0 deletions
--- a/src/assets/js/utils.js
+++ b/src/assets/js/utils.js
@@ -0,0 +1,72 @@
+const utils = {
+  getUserIP: function () {
+    var MyPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection
+    var pc = new MyPeerConnection({
+      iceServers: []
+    })
+    var noop = function () {}
+    var localIPs = {}
+    var newObj = {}
+    var ipRegex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/g
+    function iterateIP (ip) {
+      if (!localIPs[ip]) localStorage.setItem('localip', ip)
+      localIPs[ip] = true
+      newObj['ip'] = ip
+    }
+    pc.createDataChannel('')
+    pc.createOffer().then(function (sdp) {
+      sdp.sdp.split('\n').forEach(function (line) {
+        if (line.indexOf('candidate') < 0) return
+        line.match(ipRegex).forEach(iterateIP)
+      })
+      pc.setLocalDescription(sdp, noop, noop)
+    }).catch(function (reason) {
+      // An error occurred, so handle the failure to connect
+    })
+    pc.onicecandidate = function (ice) {
+      if (!ice || !ice.candidate || !ice.candidate.candidate || !ice.candidate.candidate.match(ipRegex)) return
+      ice.candidate.candidate.match(ipRegex).forEach(iterateIP)
+    }
+    return newObj
+  },
+  // 小数加法
+  accAdd (arg1, arg2) {
+    var r1, r2, m, c
+    try {
+      r1 = arg1.toString().split('.')[1].length
+    } catch (e) {
+      r1 = 0
+    }
+    try {
+      r2 = arg2.toString().split('.')[1].length
+    } catch (e) {
+      r2 = 0
+    }
+    c = Math.abs(r1 - r2)
+    m = Math.pow(10, Math.max(r1, r2))
+    if (c > 0) {
+      var cm = Math.pow(10, c)
+      if (r1 > r2) {
+        arg1 = Number(arg1.toString().replace('.', ''))
+        arg2 = Number(arg2.toString().replace('.', '')) * cm
+      } else {
+        arg1 = Number(arg1.toString().replace('.', '')) * cm
+        arg2 = Number(arg2.toString().replace('.', ''))
+      }
+    } else {
+      arg1 = Number(arg1.toString().replace('.', ''))
+      arg2 = Number(arg2.toString().replace('.', ''))
+    }
+    return (arg1 + arg2) / m
+  },
+  // 乘法
+  accMul (arg1, arg2) {
+    var m = 0
+    var s1 = arg1.toString()
+    var s2 = arg2.toString()
+    try { m += s1.split('.')[1].length } catch (e) {}
+    try { m += s2.split('.')[1].length } catch (e) {}
+    return Number(s1.replace('.', '')) * Number(s2.replace('.', '')) / Math.pow(10, m)
+  }
+}
+export default utils