python中numpy数组和字符串互转(互转后数据完全一致)
代码：
import numpy as np
# 创建数组arr
arr = np.array([ -1.8264365 , -0.6390996 , 5.1984577])
print('arr',arr)
# 数组arr转字符串str
str = ','.join(str(i) for i in arr)
print('str:',str)
# 字符串str转列表list1
list1 = str.split(',')
# 列表list1转列表list2
list2 = []
for j in list1:
list2.append(float(j))
# 列表list2转arr1
arr1 = np.array(list2)
print('arr1:',arr1)
效果：
arr [-1.8264365 -0.6390996 5.1984577]
str: -1.8264365,-0.6390996,5.1984577
arr1: [-1.8264365 -0.6390996 5.1984577]
