更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/@webassemblyjs/ieee754/LICENSE

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+MIT License
+
+Copyright (c) 2018 Sven Sauleau <sven@sauleau.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

frontend/node_modules/@webassemblyjs/ieee754/esm/index.js

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+import { write, read } from "@xtuc/ieee754";
+/**
+ * According to https://webassembly.github.io/spec/binary/values.html#binary-float
+ * n = 32/8
+ */
+
+export var NUMBER_OF_BYTE_F32 = 4;
+/**
+ * According to https://webassembly.github.io/spec/binary/values.html#binary-float
+ * n = 64/8
+ */
+
+export var NUMBER_OF_BYTE_F64 = 8;
+export var SINGLE_PRECISION_MANTISSA = 23;
+export var DOUBLE_PRECISION_MANTISSA = 52;
+export function encodeF32(v) {
+  var buffer = [];
+  write(buffer, v, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32);
+  return buffer;
+}
+export function encodeF64(v) {
+  var buffer = [];
+  write(buffer, v, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64);
+  return buffer;
+}
+export function decodeF32(bytes) {
+  var buffer = new Uint8Array(bytes);
+  return read(buffer, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32);
+}
+export function decodeF64(bytes) {
+  var buffer = new Uint8Array(bytes);
+  return read(buffer, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64);
+}

frontend/node_modules/@webassemblyjs/ieee754/package.json

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+{
+  "name": "@webassemblyjs/ieee754",
+  "version": "1.13.2",
+  "description": "IEEE754 decoder and encoder",
+  "license": "MIT",
+  "main": "lib/index.js",
+  "module": "esm/index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/xtuc/webassemblyjs.git",
+    "directory": "packages/ieee754"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "dependencies": {
+    "@xtuc/ieee754": "^1.2.0"
+  },
+  "gitHead": "897aeb784f042a46a00626f1d1cca96159aa5db3"
+}

frontend/node_modules/@webassemblyjs/ieee754/src/index.js

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+// @flow
+
+import { write, read } from "@xtuc/ieee754";
+
+/**
+ * According to https://webassembly.github.io/spec/binary/values.html#binary-float
+ * n = 32/8
+ */
+export const NUMBER_OF_BYTE_F32 = 4;
+
+/**
+ * According to https://webassembly.github.io/spec/binary/values.html#binary-float
+ * n = 64/8
+ */
+export const NUMBER_OF_BYTE_F64 = 8;
+
+export const SINGLE_PRECISION_MANTISSA = 23;
+
+export const DOUBLE_PRECISION_MANTISSA = 52;
+
+export function encodeF32(v: number): Array<number> {
+  const buffer = [];
+
+  write(buffer, v, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32);
+
+  return buffer;
+}
+
+export function encodeF64(v: number): Array<number> {
+  const buffer = [];
+
+  write(buffer, v, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64);
+
+  return buffer;
+}
+
+export function decodeF32(bytes: Array<Byte>): number {
+  const buffer = new Uint8Array(bytes);
+
+  return read(buffer, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32);
+}
+
+export function decodeF64(bytes: Array<Byte>): number {
+  const buffer = new Uint8Array(bytes);
+
+  return read(buffer, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64);
+}