閏年判斷

year=int(input("請(qǐng)輸入年份"))
if year%400 == 0 or (year % 4 == 0 and year % 100 != 0):
    print("是閏年")
else:
    print("不是閏年")

判斷質(zhì)數(shù)

num=int(input("請(qǐng)輸入一個(gè)正整數(shù)"))
if num !=1:
    for i in range(2,num):
        if num%i ==0:
            print("不是質(zhì)數(shù)")
            break
    else:print("是質(zhì)數(shù)")
else: print("是質(zhì)數(shù)")

指定范圍內(nèi)的質(zhì)數(shù)

def is_prime(num):#引用上面的質(zhì)數(shù)判段
    if num != 1:
        for i in range(2, num):
            if num % i == 0:
                return False
                break
        else:
            return True
    else:
        return True
max=int(input("最大值"))
min=int(input("最小值"))
for i in range(min,max):
 if is_prime(i):
     print(i)

簡(jiǎn)化答案

lower = int(input("輸入?yún)^(qū)間最小值: "))
upper = int(input("輸入?yún)^(qū)間最大值: "))
 
for num in range(lower,upper + 1):
    # 素?cái)?shù)大于 1
    if num > 1:
        for i in range(2,num):
            if (num % i) == 0:
                break
        else:
            print(num)

階乘

num=int(input("請(qǐng)輸入一個(gè)數(shù)"))
if num<0:
    print("抱歉負(fù)數(shù)沒(méi)有階乘")
elif num == 0 :
    print("0！=1")
else:
    sum=1
    for i in range(1,num):
        sum*=i
    print("{}!={}".format(num,sum))

打印nn乘法表

num=int(input("n="))
for j in range(1,num+1):
    for i in range(1,j+1):
        if i!=j:
            print("%d*%d=%d"%(i,i,i*i),end=",")
        else:
            print("%d*%d=%d"%(i,i,i*i),end="\n")

小于n的斐波那契數(shù)列