book_5

5.1
5.2
5.3
5.4 def PrimeList(N):
result = []
for num in range(2, N):
if isPrime(num):
result.append(num)
return " ".join(map(str, result))
5.5
def isNum(s):
try:
float(s)
return True
except ValueError:
return False
5.6
def multi(*args):
result = 1
for num in args:
if isinstance(num, (int, float)):
result *= num
return result
5.7
def FabN(n):
if n == 1:
return 0
elif n == 2:
return 1
return FabN(n - 1) + FabN(n - 2)
5.8
def isType(x):
if isinstance(x, int):
return "整数"
elif isinstance(x, float):
return "小数"
elif isinstance(x, complex):
return "复数"
elif isinstance(x, str):
return "字符串"
elif isinstance(x, list):
return "列表"
elif isinstance(x, dict):
return "字典"
elif isinstance(x, set):
return "集合"
elif isinstance(x, tuple):
return "元组"
else:
return "其他类型"