Python time.time() 函数使用教程 | 时间戳获取与应用

import time

# 获取当前时间戳
timestamp = time.time()
print("当前时间戳:", timestamp)

# 示例输出: 当前时间戳: 1690304400.123456
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import time

timestamp = time.time()
local_time = time.localtime(timestamp)
formatted_time = time.strftime("%Y-%m-%d %H:%M:%S", local_time)

print("格式化后的时间:", formatted_time)
# 示例输出: 格式化后的时间: 2023-07-25 14:30:45
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import time

# 记录开始时间
start_time = time.time()

# 模拟耗时操作
sum = 0
for i in range(1000000):
    sum += i

# 记录结束时间
end_time = time.time()

# 计算执行时间
execution_time = end_time - start_time
print(f"代码执行耗时: {execution_time:.6f} 秒")
# 示例输出: 代码执行耗时: 0.045678 秒
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import time

def generate_timestamp_id():
    """生成基于时间戳的唯一ID"""
    return f"ID_{int(time.time() * 1000)}"

# 生成ID示例
print(generate_timestamp_id())  # 输出: ID_1690304400123

import time

# 设置操作间隔为0.5秒
interval = 0.5
last_operation_time = time.time()

for i in range(5):
    current_time = time.time()
    
    # 检查是否达到操作间隔
    if current_time - last_operation_time >= interval:
        print(f"执行操作 {i+1} @ {time.strftime('%H:%M:%S')}")
        last_operation_time = current_time
    else:
        # 等待剩余时间
        time.sleep(interval - (current_time - last_operation_time))