修复字典缓存删除方法参数错误问题(I7UDIR)

@@ -14,7 +14,7 @@ const mutations = {
     try {
       for (let i = 0; i < state.dict.length; i++) {
         if (state.dict[i].key == key) {
-          state.dict.splice(i, i)
+          state.dict.splice(i, 1)
           return true
         }
       }