如何将后三列数据全部变成小数点后面有三位？
想知道怎么把后面三列数全都变成小数点后有三位的。python新手求教~
已知
x = 3.89
print('%.3f' % x) # 能加0
f = open('D:\作业\phc\Euler angle\0.08.txt', 'r+',encoding = 'utf-8')
lines = f.read()
lines_str = str(lines)
for line in lines:
items = line.replace('\t',',')
items = eval(items)
