读取log中的loss

用python代码读取日志文件中的loss

def read_log(filename):
    fp=open(filename,"r", encoding='utf-8')
    
    for line in fp.readlines():
        if 'loss' in line:
            #tmp=line.split(' ')
            #print(tmp[-1])
            #iter=line[42:63]#Iter [251800/600000]
            iter=line[48:54]#252800
            iter=iter.split('/')
            iter=iter[0]
            loss=line[-7:]
            #print(iter,loss)

            with open('loss.txt','a') as fp2:
                #fp2.write(iter+' '+loss)
                fp2.write(loss)


    fp.close()

def main():
    filename='log.txt'
    read_log(filename)
    print('over')

if __name__=='__main__':
    main()