python嵌套循环while_python while嵌套循环

while循环

1、输出打印以#组成的长方形，自己定义长和宽。

# -*-encoding:utf-8-*-

'''

This is script for start docker containor!

Auth: cuishuai

'''

height = int(input("Height:"))

width  = int(input("Width:"))

num_height = 1

while num_height <= height:

num_width = 1

while num_width <= width:

num_width += 1

print("#",end="")

num_height += 1

print()

2、输出如下图形

*

* *

* * *

* * * *

# -*-encoding:utf-8-*-

'''

This is script for start docker containor!

Auth: cuishuai

'''

width  = int(input("Width:"))

num_width = 1

while num_width <= width:

print("#"*num_width,end="n")

num_width += 1

3、输出2的倒叙图形：

* * * *

* * *

* *

*

# -*-encoding:utf-8-*-

'''

This is script for start docker containor!

Auth: cuishuai

'''

width  = int(input("Width:"))

while width > 0:

print("#"*width,end="n")

width -= 1

第二种实现方式，使用嵌套循环：

# -*-encoding:utf-8-*-

'''

This is script for start docker containor!

Auth: cuishuai

'''

width  = int(input("Width:"))

while width > 0:

num_width = width

while num_width > 0:

print("*",end="")

num_width -= 1

print()

width -= 1

5、输出99乘法表

# -*-encoding:utf-8-*-

'''

This is script for start docker containor!

Auth: cuishuai

'''

width  = 1

while width <= 9:

num_width = 1

while num_width <= width:

print(str(num_width)+"*"+str(width)+"="+str(num_width*width),end="t")

num_width += 1

print()

width += 1

倒叙99表

# -*-encoding:utf-8-*-

'''

This is script for start docker containor!

Auth: cuishuai

'''

width  = 9

while width > 0:

num_width = 1

while num_width <= width:

print(str(num_width)+"*"+str(width)+"="+str(num_width*width),end="t")

num_width += 1

print()

width -= 1

注释：end=表示每一行的结尾，n表示换行符，t表示制表符