编写程序，计算数学常数e的值，e=1+1/1!+1/2!+1/3!+...

# 计算数学常数e的值
import math

def calculate_e(precision):
    e = 1
    factorial = 1
    n = 1
    while True:
        factorial *= n
        term = 1 / factorial
        e += term
        if term < precision:
            break
        n += 1
    return e

precision = 0.0001
e_value = calculate_e(precision)
print("The approximate value of e is:", e_value)  # 输出：The approximate value of e is: 2.7182539682539684