add codes

src/libs/utils.js

@@ -0,0 +1,29 @@
+/**
+ * 限制数字大小
+ * @param {*} num
+ * @param {*} min
+ * @param {*} max
+ * @returns
+ */
+export const limitNumber = (num, min = 0, max = 100) => {
+  const number = parseInt(num);
+  if (Number.isNaN(number) || number < min) {
+    return min;
+  } else if (number > max) {
+    return max;
+  }
+  return number;
+};
+
+/**
+ * 匹配是否为数组中的值
+ * @param {*} arr
+ * @param {*} val
+ * @returns
+ */
+export const matchValue = (arr, val) => {
+  if (arr.length === 0 || arr.includes(val)) {
+    return val;
+  }
+  return arr[0];
+};