python日常题目小练习
<p>1、使用while循环输出1 2 3 4 5 68 9 10</p><pre><code class="language-python">i=0
while i<10:
i+=1
if i==7:
continue
print(i)
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191459084-1021966588.png" alt="" loading="lazy"></p>
<p>2、求1-100的所有数的和</p>
<pre><code class="language-python">sum=0
i=0
while i<100:
i+=1
sum+=i
print(sum)
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191845921-894833810.png" alt="" loading="lazy"></p>
<p>3、输出 1-100 内的所有奇数</p>
<pre><code class="language-python">for i in range(101):
if i%2==1:
print(i,end=' ')
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191522910-846334858.png" alt="" loading="lazy"></p>
<p>4、输出 1-100 内的所有偶数</p>
<pre><code class="language-python">for i in range(1,101):
if i%2==0:
print(i,end=' ')
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191559774-1834269575.png" alt="" loading="lazy"></p>
<p>5、求1-2+3-4+5 ... 99的所有数的和</p>
<pre><code class="language-python">sum=0
i=1
while i<100:
if i%2==1:
sum+=i
else:sum-=i
i+=1
print(sum)
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191625442-1168479865.png" alt="" loading="lazy"></p>
<p>6、用户登陆（三次机会重试）</p>
<pre><code class="language-python">zh='lzs'
mm='1234'
count=0
while count<3:
count+=1
zh1 = input("请输入账号")
mm1 = input("请输入密码")
if zh==zh1 andmm==mm1:
print("欢迎登陆！")
break
else:print("请确认后再输入")
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191649786-287232334.png" alt="" loading="lazy"></p>
<p>7、猜年龄游戏要求：允许用户最多尝试3次，3次都没猜对的话，就直接退出，如果猜对了，打印恭喜信息并退出</p>
<pre><code class="language-python">count=0
age=20
while count<3:
count+=1
age1=eval(input("请输入一个猜测的年龄"))
if age==age1:
print("恭喜你猜对了")
print(age1)
break
else:print("请重新再猜测一次")
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191710174-1999005274.png" alt="" loading="lazy"></p>
<p>8、猜年龄游戏升级版(选做) 要求：允许用户最多尝试3次每尝试3次后， 如果还没猜对，就问用户是否还想继续玩，如果回答Y或y, 就继续让其猜3次，以此往复，如果回答N或n，就退出程序如何猜对了，就直接退出</p>
<pre><code class="language-python">count=0
age=20
while count<3:
count+=1
age1=eval(input("请输入一个猜测的年龄"))
if age==age1:
print("恭喜你猜对了")
print(age1)
break
else:print("请重新再猜测一次")
if count==3:
s = input("是否选择重新游戏请选择y或者n")
if s=='y':
count=0
continue
else:break
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191809613-106781806.png" alt="" loading="lazy"></p>
<p>9、for循环打印99乘法表</p>
<pre><code class="language-python">for i in range(1,10):
for j in range(1,i+1):
print(f'{j}*{i}={i*j} ',end='')
print("")
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191729381-545739890.png" alt="" loading="lazy"></p>
<p>10、for循环打印金字塔:</p>
<pre><code class="language-python">for i in range(-1,10,2):
print(f'{"*"*i:^9}')
</code></pre>
<p>结果：</p>
<p><img src="https://img2018.cnblogs.com/blog/1739657/201907/1739657-20190717191746209-395800302.png" alt="" loading="lazy"></p>
</div>
<div id="MySignature" role="contentinfo">
既然选择了远方，只能风雨兼程<br><br>
来源：https://www.cnblogs.com/lzss/p/11203211.html
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