豆粑粑，用python, numpy 存数据
用numpy 来实现数据的存储。import numpy as np
import os
os.chdir('./')
a = np.arange(0,12)
np.save('a.npy',a.reshape(3,4))
c = np.load('a.npy')
print(c)
import numpy as np
import os
os.chdir('./')
a = np.arange(0,12)
a.reshape(3,4)
a.tofile('a.bin')
b = np.fromfile('a.bin',dtype=np.int64)
c = b.reshape(3,4)
print(c)
import numpy as np
import os
os.chdir('./')
a = np.arange(0,12,0.5).reshape(4,-1)
print a
np.savetxt('a.txt',a)
np.loadtxt('a.txt')
print a
b=a;
np.savetxt('b.txt',b,fmt="%d",delimiter=",")
b=np.loadtxt('b.txt',delimiter=',')
print b
这里可以将多个数组存在一个文件时在，用解压的程序可以得到存放的.npy数组。
import numpy as np
import os
os.chdir('./')
a = np.array([,])
b = np.arange(0,1.0,0.1)
c=np.sin(b)
np.savez('result.npz',a,b,sin_arr=c)
r=np.load('result.npz')
print(r['arr_0'])
print(r['arr_1'])
print(r['sin_arr'])
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