1.
python
#A.方法一
num = int(input("请输入要打印的层数:"))
for n in range(1, num+1):
s = ""
for i in range(1, n+1):
s += f"{i}" + " "
print(s)
#方法二:
i=int(input("i:"))
for i in range(1,i+1):
s=""
for j in range(1,i+1):
s+=f"{j}\t"
print(s)
#B.方法一:
num = int(input("请输入要打印的层数:"))
for i in range(num+1, 0, -1):
s=" "
for j in range(1, i, 1):
s+=f"{j}" + " "
print(s)
#方法二:
n = int(input("n:"))
for i in range(n):
for j in range(1,n-i+1):
print(f"{j}\t",end='')
print()
#C.方法一:
num = int(input("请输入要打印的层数:"))
for i in range(1, num + 1):
s = ""
for k in range(num - i):
s += " " * 2
for j in range(0, i):
s += f"{(i - j)}" + " "
print(s)
#方法二:
n = int(input("n:"))
for i in range(1,n+1):
for _ in range(n-i):
print("\t",end='')
for j in range(i,0,-1):
print(f"{j}\t",end='')
print()
#D.方法一:
num = int(input("请输入要打印的层数:"))
for i in range(num + 1, 0, -1):
s = ""
for k in range(num + 1 - i):
s += " " * 2
for j in range(i - 1, 0, -1):
s += f"{(i - j)}" + " "
print(s)
#方法二:
n = int(input("n:"))
for i in range(1,n+1):
for _ in range(i-1):
print("\t",end='')
for j in range(1,n+2-i):
print(f"{j}\t",end='')
print()
2.
python
n = input("Enter an integer:")
n = n[3::-1]
print(f"The reversed number is {n}")
运行结果如下:
3.
python
n = int(input("Enter an integer:"))
m = n % 5 == 0 and n % 6 == 0
print(f"Is {n} divisible by 5 and 6?", m)
m = n % 5 == 0 or n % 6 == 0
print(f"Is {n} divisible by 5 or 6?", m)
m = not (n % 5 == 0 and n % 6 == 0)
print(f"Is {n} divisible by 5 and 6,but not both", m)