您需要删除delimiter='\t'-分隔符为,.

You need remove delimiter='\t' - separator is ,.

它起作用是因为默认分隔符是,，也可以删除header=0，因为如果不是header=0参数，默认情况下是header=0:

It working because default separator is ,, also is possible remove header=0 because if not parmeter names by default header=0:

df = pd.read_csv('C:/Users/IBM_ADMIN/Desktop/Delete/input1.csv',encoding='ANSI')