以下是一个使用Python编写的示例代码，演示了如何通过API网关（API Gateway）和网络负载均衡（Load Balancer）来减少弹性计算服务（Elastic Compute Service）的延迟。

import time
import requests

# API网关示例代码
def make_request_through_api_gateway():
    api_gateway_url = "http://api-gateway.example.com"
    endpoint = "/my-endpoint"
    url = api_gateway_url + endpoint
    
    response = requests.get(url)
    
    if response.status_code == 200:
        return response.json()
    else:
        return None

# 网络负载均衡示例代码
def make_request_through_load_balancer():
    load_balancer_url = "http://load-balancer.example.com"
    endpoint = "/my-endpoint"
    url = load_balancer_url + endpoint
    
    response = requests.get(url)
    
    if response.status_code == 200:
        return response.json()
    else:
        return None

# 弹性计算服务延迟示例代码
def process_data():
    # 假设这里需要耗费一些时间来处理数据
    time.sleep(3)
    
    return {"result": "data processed successfully"}

# 使用API网关发送请求并处理数据
data_through_api_gateway = make_request_through_api_gateway()
if data_through_api_gateway:
    result = process_data()
    print(result)

# 使用网络负载均衡发送请求并处理数据
data_through_load_balancer = make_request_through_load_balancer()
if data_through_load_balancer:
    result = process_data()
    print(result)

注意，这只是一个示例代码，实际的API网关、网络负载均衡和弹性计算服务的配置和使用可能因具体环境和需求而有所不同。请根据自己的实际情况进行相应的配置和调整。