Question

如何将输出打印在两列并排排列的列中。我已将其设置为打印两列，但我的数据没有排列。哦，顺便说一句，我不允许使用使用列表，元组，集合或词典。特别是你不能使用字符串split（）方法，因为它返回一个列表。

my_file=open("project05.data.txt", "r")
outfile = open("dummy.txt","w")
header = my_file.readline()
print("{:^80}".format(header[67:72]),file=outfile)

state = my_file.readline()
print(state[0:17],file=outfile)

count=0

for line in my_file:
    count+=1
    print(line[0:17],file=outfile) 

    data="{:^80}".format(line[67:75].rstrip())
    print(data,file=outfile)
    if count > 10:
        break
outfile.close()

Output:
                                 1+MMR                                      
U.S. National    
Alabama          
                                89.7+5.8                                    
Alaska           
                                90.5+3.6                                    
Arizona          
                                91.4+3.7                                    
Arkansas         
                                88.3+5.9                                    
California       
                                90.7+5.3                                    
Colorado         
                                86.0+5.5                                    
Connecticut      
                                91.4+5.4                                    
Delaware         
                                94.8+3.4                                    
Dist. of Columbia
                                96.2+3.1                                    
Florida          
                                93.4+4.0                                    
Georgia          
                                93.9+4.1

Answer 1

问题是您要两次拨打print。 print始终输出到新行。如果您希望两列都在同一行，则只需将两个格式说明符组合成一个字符串：

for line in my_file:
    count += 1
    output = "{}{:^80}".format(line[0:17], line[67:75].rstrip())
    print(output, file=outfile)
    if count > 10:
        break

当然，您还应该将文件包装在适当的with语句中：

with open('infile') as my_file, open('outfile', 'w') as outfile:
    #above code goes here
# Now don't need to close explisitly

如何在文件输出中打印两列

1 个答案: