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pyvisa库的使用时报错"# visa.ResourceManager() got function 'viOpen' not found in Windows"

参考(靠谱, google 上英文检索出的):visa.ResourceManager() got function 'viOpen' not found in Windows · Issue #385 · pyvisa/pyvisa · Gi…

• 键入 pyvisa-info or python -m visa info 查看visa64.dll所在路径
• 代码上更改即可

  import os
  os.add_dll_directory('C:\\Program Files (x86)\\Keysight\\IO Libraries Suite\\bin')
  
  import pyvisa as visa
  
  # if __name__ == '__main__':
  resource_manager = visa.ResourceManager('C:\\Windows\\system32\\visa32.dll')      
  # resource_manager = visa.ResourceManager('C:\\Windows\\system32\\visa64.dll')    
  # resource = resource_manager.open_resource(r'TCPIP0::192.168.0.56::inst0::INSTR', write_termination='\n')  
  resource = resource_manager.open_resource(r'TCPIP0::192.168.0.19::5025::SOCKET', write_termination='\n')
  
  resource.write(":FORMat:DATA REAL")
  resource.write("FORM:BORD NORM")
  response = resource.write(":CALCulate1:TRACe4:DATA:FDATa?")