新增数学计算和随机数

plugin/lib/quickcomposer/data/index.js

@@ -4,6 +4,7 @@ const string = require("./string");
 const crypto = require("./crypto");
 const buffer = require("./buffer");
 const zlib = require("./zlib");
+const random = require("./random");
 
 module.exports = {
   ...encoder,
@@ -12,4 +13,5 @@ module.exports = {
   ...crypto,
   buffer,
   zlib,
+  random,
 };

plugin/lib/quickcomposer/data/random.js

@@ -0,0 +1,23 @@
+const randomInt = (start, end) => {
+  return Math.round(Math.random() * (end - start) + start);
+};
+
+const random = (isInt = false, start, end) => {
+  if (!start && !end) {
+    return isInt ? randomInt(0, 1000000) : Math.random();
+  }
+
+  if (!end) {
+    end = Math.abs(randomInt(0, 1000000) - start);
+  }
+
+  if (!start) {
+    start = 0;
+  }
+
+  // 有start和end：返回区间随机数
+  const random = Math.random() * (end - start) + start;
+  return isInt ? Math.round(random) : random;
+};
+
+module.exports = random;