Python之条件判断和循环
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2022-04-14 12:06:42
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Python之条件判断和循环
1. Python之if语句
score = 75 if score >= 60: print 'passed'
2. Python之if-else
score = 55 if score >= 60: print 'passed' else: print 'failed'
3. Python之if-elif-else
score = 85 if score >= 90: print 'excellent' elif score >= 80: print 'good' elif score >= 60: print 'passed' else: print 'failed'
4. Python之for循环
L = [75, 92, 59, 68] sum = 0.0 for x in L: sum = sum + x print sum / 4
5. Python之while循环
sum = 0 x = 1 while x < 100: sum = sum + x x = x + 2 print sum
6. Python之break退出循环
sum = 0 x = 1 n = 1 while True: if n > 20: break sum = sum + x x = x * 2 n = n + 1 print sum
7. Python之continue继续循环
sum = 0 x = 0 while True: x = x + 1 if x > 100: break if x % 2 == 0: continue sum = sum + x print sum
8. Python之continue继续循环
for x in [1, 2, 3, 4, 5, 6, 7, 8, 9]: for y in [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]: if x < y: print x * 10 + y
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