# (1) 99 乘法表 方向一i = 1
while i<=9:
# 列印表示式
j = 1
while j <= i:
print("%d*%d=%2d " % (i,j,i*j) ,end="")
j+=1
# 列印換行
print()
i+=1
# 方向二
i = 1
while i<=9:
# 列印空格
k = 9 - i
while k>0:
print(" ",end="")
k -= 1
# 列印乘法表示式
j = 1
while j<=i:
print("%d*%d=%2d " % (i,j,i*j),end="")
j+=1
# 列印換行
print()
i+=1
"""k = 8
while k>0:
print(" " * k,end="")
print(1)
k-=1
1 => 8
2 => 7
3 => 6
4 => 5
...8 => 1
"""# 方向三
print("<==>")
i = 9
while i>0:
# 列印表示式
j = 1
while j <= i:
print("%d*%d=%2d " % (i,j,i*j) ,end="")
j+=1
# 列印換行
print()
i-=1
# 方向四
i = 9
while i>0:
# 列印空格
k = 9 - i
while k>0:
print(" ",end="")
k -= 1
# 列印乘法表示式
j = 1
while j<=i:
print("%d*%d=%2d " % (i,j,i*j),end="")
j+=1
# 列印換行
print()
i-=1
# 1.100~ 999 找吉利數字 111 222 333 ... 999 123 321 456 654 ..678 876 列印出來
# 寫法一
'''789
個位: 789 % 10
十位: 789 // 10 % 10 => 78 % 10 => 8
百位: 789 // 100
'''i = 100
while i<=999:
# 算出個位
gewei = i % 10
# 算出十位
shiwei = i // 10 % 10
# 算出百位
baiwei = i // 100
if shiwei == gewei and shiwei == baiwei :
print(i)
# 123 678
if shiwei == gewei-1 and shiwei == baiwei + 1:
print(i)
# 321 876
if shiwei == gewei+1 and shiwei == baiwei - 1:
print(i)
i+=1
# 寫法二
'''strvar = "789"
strvar[0] => "7"
strvar[1] => "8"
strvar[-1] => "9"
'''print("<*************************=>")
'''i = 100
while i<=999:
strvar = str(i)
# 算出個位
gewei = int(strvar[0])
# 算出十位
shiwei = int(strvar[1])
# 算出百位
baiwei = int(strvar[-1])
if shiwei == gewei and shiwei == baiwei :
print(i)
# 123 678
if shiwei == gewei-1 and shiwei == baiwei + 1:
print(i)
# 321 876
if shiwei == gewei+1 and shiwei == baiwei - 1:
print(i)
i+=1
'''# 2.百錢買百雞 公雞1塊錢乙隻 母雞 3塊錢乙隻 小雞5毛錢乙隻 100塊錢 買 100隻雞 有多少種買法(公升級)
"""# 窮舉法: 乙個乙個的試
公雞x 母雞y 小雞z x+y+z = 100
x 1,2
y 3,4
z 5,6
x+y+z=10 ?
x = 1
1 + 3 + 5
1 + 3 + 6 = 10
1 + 4 + 5 = 10
1 + 4 + 6
x = 2
2 + 3 + 5 = 10
2 + 3 + 6
2 + 4 + 5
2 + 4 + 6
"""x = 0
while x <= 100:
y = 0
while y<=33:
z = 0
while z<=100:
if (x+y+z == 100) and (x*1 + 3*y + 0.5 * z == 100):
print(x,y,z)
z+=1
y+=1
x+=1
# 7.寫**：計算 1 - 2 + 3 -4 + 5 -6 ... ... + 99 中除了88以外所有數的總和？
i = 1
total = 0
while i <= 99:
if i == 88:
i+=1
continue
if i % 2 == 1:
# 1 + 3 + 5+ 7 + 9...
total += i
# total = 1 + 3 + 5 +7 ...
else:
# -2 -4 -6 -8 -10.....
total -= i
# total = -2 -4 -6 -8
i+=1
print("<===>")
print(total)
# 2500 - 2450 = 50
# 2450
# for迴圈自動完成加一操作
total = 0
for i in range(1,100):
if i == 88:
continue
if i % 2 == 1:
total += i
else:
total -= i
print(total)
"""9~1
for i in range(9,0,-1)
print(i)
j = 1
while j<=i:
pass
for i in range(1,i+1):
pass # 1 ~ i
"""
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