#Define desired character set
valid_chars = set([chr(i) for i in range(33,127)])
total_lines = total_words = total_chars = 0
line_details = []
with open ('test.txt', 'r') as f:
for line in f:
total_lines += 1
line_char_count = len([char for char in line if char in valid_chars])
total_chars += line_char_count
total_words += len(line.split())
line_details.append("Line %d has %d characters" % (total_lines, line_char_count))
print ("There are", total_lines, "lines in the file.")
print ("There are", total_chars, "characters in the file.")
print ("There are", total_words, "words in the file.")
for line in line_details:
print (line)
。定义LED电流的适当方法是什么：通过信道信息枚举申请此类设置？可供选择的是：
IIO_PROXIMITY是enum iio_chan_info_enum {
IIO_CHAN_INFO_RAW = 0,
IIO_CHAN_INFO_PROCESSED,
IIO_CHAN_INFO_SCALE,
IIO_CHAN_INFO_OFFSET,
IIO_CHAN_INFO_CALIBSCALE,
IIO_CHAN_INFO_CALIBBIAS,
IIO_CHAN_INFO_PEAK,
IIO_CHAN_INFO_PEAK_SCALE,
IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
IIO_CHAN_INFO_AVERAGE_RAW,
IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY,
IIO_CHAN_INFO_SAMP_FREQ,
IIO_CHAN_INFO_FREQUENCY,
IIO_CHAN_INFO_PHASE,
IIO_CHAN_INFO_HARDWAREGAIN,
IIO_CHAN_INFO_HYSTERESIS,
IIO_CHAN_INFO_INT_TIME,
IIO_CHAN_INFO_ENABLE,
IIO_CHAN_INFO_CALIBHEIGHT,
IIO_CHAN_INFO_CALIBWEIGHT,
IIO_CHAN_INFO_DEBOUNCE_COUNT,
IIO_CHAN_INFO_DEBOUNCE_TIME,
IIO_CHAN_INFO_CALIBEMISSIVITY,
IIO_CHAN_INFO_OVERSAMPLING_RATIO,
};
吗？或者最好从以下选项中定义单个LED电流通道类型：
IIO_CHAN_INFO_HARDWAREGAIN
使用enum iio_chan_type {
IIO_VOLTAGE,
IIO_CURRENT,
IIO_POWER,
IIO_ACCEL,
IIO_ANGL_VEL,
IIO_MAGN,
IIO_LIGHT,
IIO_INTENSITY,
IIO_PROXIMITY,
IIO_TEMP,
IIO_INCLI,
IIO_ROT,
IIO_ANGL,
IIO_TIMESTAMP,
IIO_CAPACITANCE,
IIO_ALTVOLTAGE,
IIO_CCT,
IIO_PRESSURE,
IIO_HUMIDITYRELATIVE,
IIO_ACTIVITY,
IIO_STEPS,
IIO_ENERGY,
IIO_DISTANCE,
IIO_VELOCITY,
IIO_CONCENTRATION,
IIO_RESISTANCE,
};
一个用于该类型，然后使用IIO_CURRENT作为信息？