文件流读写 读取将数据保存为数组的txt文件 使用try进行异常发现，使用while检测文件的末尾进行读取 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())
用于遍历每一行读取，以便一次性读取和输入 下面调用的程序读取的数据是 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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