
1、使用try进行异常发现,使用while检测文件末尾进行读取
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | file_to_read = raw_input( "Enter file name of tests (empty string to end program):" )
try :
infile = open(file_to_read, 'r' )
while file_to_read != " " :
file_to_write = raw_input( "Enter output file name (.csv will be appended to it):" )
file_to_write = file_to_write + ".csv"
outfile = open(file_to_write, "w" )
readings = (infile.readline())
print readings
while readings != 0:
global count
readings = int(readings)
minimum = (infile.readline())
maximum = (infile.readline())
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2、使用for遍历读取的每一行,进行一次性的读取和输入
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | result = list()
with open( '../test/parameter.txt' ) as f:
for line in f.readlines():
temp = list()
# 逐个遍历对应每一行元素,将之转为对应的数据
b = line.strip( ",][" ).split( ',' )
if (len(b) >= 5):
b.pop()
for a in b:
a = a.replace( '[' , '' ).replace( ']' , '' )
temp.append(float(a))
result.append(temp)
#print("中途打印的temp是",temp)
#print("加入到result中的结果是",result)
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以上就是python两种不同的文件流读写,希望对大家有所帮助。更多Python学习指路:python基础教程
本文教程操作环境:windows7系统、Python 3.9.1,DELL G3电脑。