英文:
CSV File display a string input
问题
我已经创建了一个Tkinter应用程序来将数据存储在CSV文件中。以下是代码：
def add_file():
global msg
msg = entry.get()
print(msg)
if msg != '':
listbox_tasks.insert(END, msg)
entry.delete(0, END)
else:
messagebox.showinfo('Info', 'Please Fill In The Entry Box!')
def save_file(msg):
with open('hello.csv', 'a', newline='') as f:
writer = csv.writer(f, quotechar='"', quoting=csv.QUOTE_ALL)
writer.writerow([msg])
messagebox.showinfo('Info', 'Message Saved!')
scrollbar_tasks = Scrollbar(root)
scrollbar_tasks.pack(side=RIGHT, fill=Y)
listbox_tasks = Listbox(root, yscrollcommand=scrollbar_tasks.set, height=12, width=32,
font=('Helvetica', 18))
listbox_tasks.pack(pady=20)
entry = Entry(label_frame1, font=('Helvetica', 18))
entry.grid(row=0, column=1)
my_create = Button(label_frame2, text='Add File',
font=('Helvetica', 15), command=add_file)
my_create.grid(row=0, column=0, pady=10, padx=10)
my_entry = Button(label_frame2, text='Save File', bg='green', fg='#ffffff',
font=('Helvetica', 15), command=lambda:save_file(msg))
my_entry.grid(row=1, column=0, pady=10, padx=10)
当我在输入框中输入"1,Apple"并点击保存文件按钮时，CSV文件中显示为"1,Apple"而不是1,"Apple"。
如何去除字符串中的引号？
英文:
I have created a Tkinter app to store the data in CSV file. The code as follow:
def add_file():
global msg
msg = entry.get()
print(msg)
if msg != '':
listbox_tasks.insert(END, msg)
entry.delete(0, END)
else:
messagebox.showinfo('Info', 'Please Fill In The Entry Box!')
def save_file(msg):
with open('hello.csv', 'a', newline='') as f:
writer = csv.writer(f, quotechar='"', quoting=csv.QUOTE_ALL)
writer.writerow([msg])
messagebox.showinfo('Info', 'Message Saved!')
scrollbar_tasks = Scrollbar(root)
scrollbar_tasks.pack(side=RIGHT, fill=Y)
listbox_tasks = Listbox(root, yscrollcommand=scrollbar_tasks.set, height=12, width=32,
font=('Helvatica', 18))
listbox_tasks.pack(pady=20)
entry = Entry(label_frame1, font=('Helvatica', 18))
entry.grid(row=0, column=1)
my_create = Button(label_frame2, text='Add File',
font=('Helvatica', 15), command=add_file)
my_create.grid(row=0, column=0, pady=10, padx=10)
my_entry = Button(label_frame2, text='Save File', bg='green', fg='#ffffff',
font=('Helvatica', 15), command=lambda:save_file(msg))
my_entry.grid(row=1, column=0, pady=10, padx=10)
When I enter 1,Apple in entry and clicked save file button, in my CSV file display as "1,Apple" instead of 1,"Apple".
How could I strip out the string?
答案1
得分: 3
这个写入函数将十进制数据（未引用）和其他数据（已引用）拆分。
这是写入函数的代码：
decimals = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.'}
def save_file(msg):
with open('hello.csv', 'a', newline='') as f:
msg += ","
formatted = ''
quote = False
block = ''
for i in msg:
if i not in decimals:
if i != ",":
quote = True
block += i
else:
if quote:
block = '"' + block + '"'
formatted += block
formatted += ','
quote = False
block = ''
else:
block += i
formatted = formatted[:-1]
f.write(formatted + "\n")
messagebox.showinfo('Info', 'Message Saved!')
当我使用以下代码时：
msg = "2,gerry,2.2,erderrer,42.0,22hellohelloh4llo,123.456789"
save_file(msg)
我在CSV文件中得到以下内容：
2,"gerry",2.2,"erderrer",42.0,"22helloh4llo",123.456789
该行以换行符结尾。
英文:
This writer function splits decimal data (not quoted) and other data (quoted).
This is the writer function:
decimals = {'0','1','2','3','4','5','6','7','8','9','.'}
def save_file(msg):
with open('hello.csv', 'a', newline='') as f:
msg += ","#ending char
formatted = ''
quote = False
block = ''
for i in msg:
if i not in decimals:
if i != ",":
quote = True
block += i
else:
if quote:
block = '"'+block+'"'
formatted += block
formatted += ','
#new block
quote = False
block = ''
else:
block += i
formatted = formatted[:-1]#remove ending char
f.write(formatted+"\n")
messagebox.showinfo('Info', 'Message Saved!')
When I use this:
msg = "2,gerry,2.2,erderrer,42.0,22hellohelloh4llo,123.456789"
save_file(msg)
I get this in the CSV file:
2,"gerry",2.2,"erderrer",42.0."22helloh4llo",123.456789
The line is ending with a newline character.
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