Как прочитать первую строку в файле python
f = open("test.txt", 'r')
variable = f.readline(1)
print(variable)
Weary Whale
f = open("test.txt", 'r')
variable = f.readline(1)
print(variable)private ArrayList<String> readFileLines(String filepath) throws FileNotFoundException, IOException{
File fp = new File(filepath);
FileReader fr = new FileReader(fp);
BufferedReader br = new BufferedReader(fr);
ArrayList<String> lines = new ArrayList<>();
String line;
while((line = br.readLine()) != null) { lines.add(line); }
fr.close();
return lines;
}# attempt #1
f = open("Bills.txt", "w")
f.write("\n".join(map(lambda x: str(x), bill_List)))
f.close()
# attempt #2
# Open a file in write mode
f = open('Bills.txt', 'w')
for item in bill_List:
f.write("%s\n" % item)
# Close opend file
f.close()
# attempt #3
with open('Bills.txt', 'w') as f:
for s in bill_List:
f.write(s + '\n')
with open('Bills.txt', 'r') as f:
bill_List = [line.rstrip('\n') for line in f]
# attempt #4
with open('Bills.txt', 'w') as out_file:
out_file.write('\n'.join(
bill_List))