python中基本数据类型和其他的语言占用的内存空间大小有很大差别
import sys
a = 100
b = True
c = 100L
d = 1.1
e =""
f = []
g =()
h = {}
i = set([])
print " %s size is %d "%(type(a),sys.getsizeof(a))
print " %s size is %d "%(type(b),sys.getsizeof(b))
print " %s size is %d "%(type(
一、整形
1、整形有char、short、int、long、long long，这5个也默认为signed XX ;
规则：short至少16位；int至少和short一样；long至少32位，且至少和int一样长；long long至少64位，且至少和long一样长。
其中，后面4个都有无符号变体。unsigned short、unsigned int、unsigned long、unsigned long long.
注意，unsigned本身是unsigned in
