python用while循环写实、空心三角和实、空心平行四边形

# 实心三角
i = 1
while i <= 5:
    j = 1
    while j <= 5-i:
        print(" ", end="")
        j += 1
    y = 1
    while y <= 2*i -1:
        print("*", end="")
        y += 1
    print()
    i += 1
# 空心三角 

i = 1
while i<= 5:
    j = 1
    while j <= 5-i:
        print(" ",end="")
        j +=1

    j = 1
    while j<=2*i -1:
        if j==1 or j ==2*i-1 or i ==5:
            print("*",end="")
        else:
            print(" ",end="")
        j +=1
    print()
    i +=1

# 实心平行四边形
i = 1
hang = 5
shu = 8
while i <= hang:
    a = 1
    while a <= hang - i:
        print(" ", end="")
        a += 1
    y = 1
    while y <= shu:
        print("*", end="")
        y += 1
    i += 1
    print()

# 空心平行四边形
i = 1
hang = 5
shu = 8
while i <= hang:
    print(" " * (hang - i), end="")
    if i == 1 or i == hang:
        y = 1
        while y <= shu:
            print("*", end="")
            y += 1
    else:
        print("*", end="")
        j = 1
        while j <= (shu - 2):
            print(" ", end="")
            j += 1
        print("*", end="")
    i += 1
    print()