print [x*100+y*10+z for x in range(1,10) for z in range(0,10) for y in range(0,10) if x==z]
2016-10-14
import math
def quadratic_equation(a, b, c):
x = b * b - 4 * a * c
if x >= 0:
x1 = (-b + math.sqrt(x)) / (2 * a)
x2 = (-b - math.sqrt(x)) / (2 * a)
return x1,x2
else:
return 'None'
print quadratic_equation(2, 3, 0)
print quadratic_equation(1, -6, 5)
def quadratic_equation(a, b, c):
x = b * b - 4 * a * c
if x >= 0:
x1 = (-b + math.sqrt(x)) / (2 * a)
x2 = (-b - math.sqrt(x)) / (2 * a)
return x1,x2
else:
return 'None'
print quadratic_equation(2, 3, 0)
print quadratic_equation(1, -6, 5)
2016-10-14
sum = 0
x = 1
while x<48:
sum=sum+x
x=(2x+1)
print sum
x = 1
while x<48:
sum=sum+x
x=(2x+1)
print sum
2016-10-13
d = {
'Adam': 95,
'Lisa': 85,
'Bart': 59
}
for key in d:
print key,':',d.get(key)
'Adam': 95,
'Lisa': 85,
'Bart': 59
}
for key in d:
print key,':',d.get(key)
2016-10-13
print [(k*100+x*10+k for k in range(1,10) for x in range(0,10)]
这个为什么不对
这个为什么不对
2016-10-13
L = ['Adam', 'Lisa', 'Bart', 'Paul']
for index, name in enumerate(L):
print index+1, '-', name
for index, name in enumerate(L):
print index+1, '-', name
age = 8
if age <= 6:
print 'kid'
elif age >= 18:
print 'adult'
else:
print 'teenager'
if age <= 6:
print 'kid'
elif age >= 18:
print 'adult'
else:
print 'teenager'
2016-10-13
print [int(str(m)+str(n)+str(m)) for m in range(1,10) for n in range(0,10)]
2016-10-13