sicc
112 NISRA 會長
輔大資工大三
被程式壓榨的大學生
print("Hello World")
# 註解
a = 1 # int
b = 1.23 # float
c = "String" # String
d = 'String' # String
f = True # bool
'''
多行註解
'''
a = 1 # int
b = float(a) # change int to float
print(type(b)) # get the type of b
x = [1, 3.14, "NISRA"]
x.append("Hello")
print(x[0]) # 1
print(x[-1]) # Hello
print(x[0:2]) # [1,3.14]
print(x[1:]) # [3.14, 'NISRA', 'Hello']
print(x[:]) # [1, 3.14, 'NISRA', 'Hello']
x = {
"name" : "John",
"StudentID" : 1,
"PI" : 3.14,
}#dict
print(x["name"]) # John
print(x["StudentID"]) # 1
print(x["PI"]) #3.14
str_in = input("Input what you want:")
# 預設 Data Type 為 String
print(str_in)
int_in = int(input("Input a number:"))
# int type
print(int_in)
a,b = input ("Enter 'A B'").split()
# 以空白鍵分開輸入
print(a,b)
a = "string"
b = 1234
print(a , b)
print("{0:5} {1:4}".format(a,b))
print("{} {}".format(a,b))
print(f'{a} {b}')
#string 1234
+, -, *, /,
x = 10
if(x >= 10):
# in if
# in if
#out if
x = 10
if(x >= 10){
# in if
# in if
# in if
}
#out if
x = 10
if x >= 10:
# in if
# in if
#out if
x = 10
if(x >= 10){
# in if
# in if
# in if
}
#out if
x = 10
if(x >= 10):
# in if
# in if
else:
# in else
# out if...else
x = 10
if(x >= 10):
# in if
elif(x == 9):
# in elif
else:
# in else
# out if
0 + 9
8 - 7
6 * 5
4 / 3
input
0 + 9 = 9
8 - 7 = 1
6 * 5 = 30
4 / 3 = 1
output
user_input = input()
a, op, b = user_input.split()
a = int(a)
b = int(b)
if(op == '+'):
print(user_input," = ",a+b)
elif(op == '-'):
print(user_input," = ",a-b)
elif(op == '*'):
print(user_input," = ",a*b)
else:
print(user_input, " = ",a//b)
for i in range(10):
print(i,end=' ')
# 0 1 2 3 4 5 6 7 8 9
print()
for i in range(1,10):
print(i,end=' ')
# 1 2 3 4 5 6 7 8 9
print()
for i in range(2,10,2):
print(i,end=' ')
# 2 4 6 8
print()
number = ["one","two","three"]
for i in number:
print(i,end=' ')
number = ["one","two","three"]
for i in "number":
print(i,end=' ')
a = 1;
while(a <= 5):
print(a,end=' ')
a+=1
# 1 2 3 4 5
def multiply(a, b):
c = a * b
return c
print(multiply(99, 495))
# 49005
windows : pip install pwntools
Linux : sudo apt install pwntools
用 import 的方式載入 Pwntool 資料庫
recv(int) | 接收 <int> 個字節 | |
---|---|---|
recvuntil(str) | 接收直到 <str> | |
recvline() | 接收直到換行 |
send(str) | 送出 <str> | |
---|---|---|
sendline(str) | 送出 <str> | 字尾會加上 \n |
試著用上面的語句讀出自己輸入的字串吧~
#include <stdio.h>
#include <string.h>
int main(){
char str[200];
printf("Enter what you want:\n");
gets(str);
printf("%s",str);
return 0;
}
from pwn import * # import pwn
p = remote("<網址>",<port 號>)
print(p.) # 收取 Enter What you want:
p. # 送一句指令
print(p.) # 收取一個剛剛的東西
from pwn import *
p = remote("chall2.nisra.net",44008)
print(p.recvline())
p.sendline('adjfo jdofaj')
print(p.recvline())
試著利用上面的東西找到 flag 吧
到 class.nisra.net 上面吧