3.1
initial_weight = 50
print("年份\t地球体重(kg)\t月球体重(kg)")
for year in range(1, 11):
earth_weight = initial_weight + (year - 1) * 0.5
moon_weight = earth_weight * 0.165
print(f"{year}\t\t{earth_weight:.2f}\t\t{moon_weight:.2f}")
3.2
ability = 1
days = 365
for i in range(days):
week_day = (i % 7) + 1
if week_day <= 3:
continue
else:
ability *= 1.01
print(ability)
3.3
ability = 1
days = 365
for i in range(days):
if (i + 1) % 10 != 0:
week_day = ((i % 10) % 7) + 1
if week_day <= 3:
continue
else:
ability *= 1.01
print(ability)
3.4
n = int(input("请输入一个自然数"))
n_str = str(n)
if n_str == n_str[::-1]:
print(f"{n}是回文数")
else:
print(f"{n}不是回文数")
3.5
print("+------+------+")
print("| | |")
print("| | |")
print("| | |")
print("+------+------+")
print("| | |")
print("| | |")
print("| | |")
print("+------+------+")
