ROOT version
root_v6.30.01.Linux-ubuntu22-x86_64-gcc11.4
Installation method
pre build
Operating system
wls and ubuntu22.04
Code
This is my code
from ctypes import c_double, c_int
from ROOT import TFile, TTree,TCanvas
guan = TFile("guan.root", "recreate")
ming = TTree("ming", "This is my first tree")
i = c_int(1)
a = c_double(2.2)
b = c_double(0.0)
ming.Branch("i", i, "i/I")
ming.Branch("a", a, "a/D")
ming.Branch("b", a, "b/D")
for j in range(100):
i = j
a = i * 0.1
b = a * a * 9
ming.Fill()
ming.Write()
# BUG
ming.Scan()