输出

自己试着写了一些简单逻辑
99乘法表
python
i=1
while i<=9:
j=1
while j<=i:
print(f"{j}*{i}={i*j}\t",end='')
j+=1
print()
i+=1
sum
python
print(sum(1,2))
a个数
python
str=input("请输入字符串")
sum=0
for x in str:
if x=="a":
sum+=1
print(sum)
fuc
python
def sum(num1,num2,num3):
return num1+num2+num3
res=sum(1,2,3)
print(res)
猜数
python
import random
num=random.randint(1,100)
gs=int(input("请输入数字:"))
while gs!=num:
if gs<num:
print("猜小了")
else:
print("猜大了")
gs=int(input("请输入数字:"))
print("猜对了")
偶数个数
python
sum=0
for x in range (1,100):
if x%2==0:
sum+=1
print(sum)
翻转
python
s="吧好,的对"
s1=s[::-1]
s2=s1.split(",")
print(s2)
排序
python
def sort(arr):# 大->小
n=len(arr)
for i in range(n):
for j in range(0,n-i-1):
if arr[j]<arr[j+1]:
arr[j],arr[j+1]=arr[j+1],arr[j]
print(arr)
arr=[1,4,6,3,2,8]
sort(arr)