代码

Question

第一次尝试运行此代码并在第21行遇到语法错误。不确定这是从哪里来的，因为我在代码之前没有做太多。

#defining the read method
def read():
    #opening data from first line
    pulsars = open("pulsars1.txt","r")
    #opening data from second line
    signals = open("signals1.txt","r")
    #creating a new empty list
    astro_list = []
    #reading pulsar line by line/turns all of this into string
    pulsar_data = pulsars.read()
    #reading signal data/turns all of this into string
    signal_data = signals.read()
    #appending pulsar values to list
    for all_pulsar_data in range(0,len(pulsar_data)):
        astro_list.append(pulsar_data)
    #appending signal data to list
    for all_signal_data in range(0,len(signal_data)):
        astro_list.append(signal_data)
    return(astro_list)
#defining the main function
def main():
    #displaying a descriptiong of what the program does
    purpose = "This program proccess data from the Purdue Pulsar Laboratory"
    underheading = "=" * len(purpose)
    print(purpose)
    print(underheading)
    print("It reads the data from 2 files containing the pulsar name and signal strength, \nthen combines them and displays the results.")
    #accepting inputs from the user about file names
    pulsar_name = input("\nPulsar name file: ")
    signal_strength = input("Signal strength: ")
    #reading values
    print("\nAnalyzing data from" , pulsar_name, "and", signal_strength, "files...")
    print("     ","Reading from" ,pulsar_name,"...")
    print("     ","Reading from" ,signal_strength,"...")
    print("     ","Combining values...")
    #displaying the top part of the table
    astro_list = read()
    count_head= "\n The combined BOOYA data includes", len(astro_list), "values."
    print(count_head)
    print("=" * len(count_head))
    print(astro_list)

Answer 1

如果你在PyCharm中打开这样的文件，那么错误就会变得非常明显。希望这有帮助！

# defining the read function
def read():
    #opening data from first line
    pulsars = open("pulsars1.txt","r")
    #opening data from second line
    signals = open("signals1.txt","r")
    #creating a new empty list
    astro_list = []
    #reading pulsar line by line/turns all of this into string
    pulsar_data = pulsars.read()
    #reading signal data/turns all of this into string
    signal_data = signals.read()
    #appending pulsar values to list
    for all_pulsar_data in range(0,len(pulsar_data)):
        astro_list.append(pulsar_data)
    #appending signal data to list
    for all_signal_data in range(0,len(signal_data)):
        astro_list.append(signal_data)
    return(astro_list)


#defining the main function
def main():
    astro_list = read()
    #displaying a descriptiong of what the program does
    purpose = "This program proccess data from the Purdue Pulsar Laboratory"
    underheading = "=" * len(purpose)
    print(purpose)
    print(underheading)
    print("It reads the data from 2 files containing the pulsar name and signal strength, \nthen combines them and displays the results.")
    #accepting inputs from the user about file names
    pulsar_name = input("\nPulsar name file: ")
    signal_strength = input("Signal strength: ")
    #reading values
    print("\nAnalyzing data from" , pulsar_name, "and", signal_strength, "files...")
    print("     ","Reading from" ,pulsar_name,"...")
    print("     ","Reading from" ,signal_strength,"...")
    print("     ","Combining values...")
    #displaying the top part of the table
    count_head= "\n The combined BOOYA data includes", len(astro_list), "values."
    print(count_head)
    print("=" * len(count_head))
    print(astro_list)


if __name__ == '__main__':
    main()

Answer 2

请参阅：

for all pulsar_data in range(0, len(pulsar_data)**<-**):
    astro_list.append(pulsar_data)