10.15例题

99乘法表

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v = '{0}*{1}={2}'
c = ''
for a in range(1, 10):
    for b in range(1, 10):
        if b < a:
            s = '\t\t'
            c += s
        else:
            if b == 9:
                s = v.format(a, b, a*b) + '\n'
                c += s
            else:
                s = v.format(a, b, a * b) + '\t'
                c += s
print(c)

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for y in range(1, 10):
    for i in range(1, y+1):
        print(str(i) + '*' + str(y) + '=' + str(i * y)+'\t',end='')
    print('\n', end='')

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仔细分析构思，明确需求
最简洁的往往是最好的
虚心学习

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公鸡5文一只，母鸡3文一只，小鸡1只三文，用100文买100之鸡。公鸡，母鸡,小鸡都要有。公鸡，母鸡，小鸡各买多少只刚好凑足100文。

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c = 0
for s in range(0, 100, 5):
    if 0 < s * 3 < 100:
        for i in range(1, s):
            print(str(100-3*s), str(i), str(s - i))
            c += 1
    else:
        pass
print('共有' + str(c)+'种方案')

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for x in range(1, 100):
    for y in range(1, 100):
        for z in range(1, 100):
            if x + y + z == 100 and 5*x + 3*y + z/3 == 100:
                print(x, y, z)
            else:
                pass

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for x in range(1, 100//5):
    for y in range(1, 100//3):
        for z in range(0, 100, 3):
            if z != 0 and x + y + z == 100 and 5*x + 3*y + z/3 == 100:
                print(x, y, z)
            else:
                pass

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仔细了解需求
尽量运用计算机处理逻辑问题
减少不必要运算，尽量提高运行速度


line：

egon male 18 3000
alex male 38 30000
wupeiqi female 28 20000
yuanhao female 28 10000

with open('linew','r',encoding='utf-8') as f:
    x =(line.strip().split() for line in f)
    y = [{'name':name,'sex':sex,'age':age,'gg':gg} for name,sex,age,gg in x]

print(max(y,key=lambda x:x['gg']))

print([{'name':i['name'].capitalize(),}for i in y ])

print([i for i in y if not i['name'].startswith('a')])