1. Why convert between CSV and JSON format
CSV format commonly used in a two-dimensional data representation and storage, he is a pure representation of text stored tabular data. JSON can also represent a two-dimensional data. In the information transmission network, a unified representation may be necessary, therefore, the need for mutual conversion between CSV and JSON format.
2, the code
csv turn json:
student_csv=[];
student_json=[];
with open(
"student.csv"
,mode=
'r'
,encoding=
'ansi'
)
as
student_csv_file_name:
read_object=csv.reader(student_csv_file_name); #用csv模块自带的函数来完成读写操作
with open(
"student_csv转json.json"
,mode=
'w'
,encoding=
'ansi'
)
as
student_json_file_name:
for
i
in
read_object:
student_csv.append(i);
key=student_csv[0];
for
i
in
range(1,len(student_csv)):
student_json_temp=[];
for
j
in
zip(key,student_csv[i]):
k=
":"
.
join
(j);
student_json_temp.append(k);
student_json.append(student_json_temp);
json.dump(student_json,student_json_file_name);
json turn csv:
student_csv=[];
student_json=[];
with open(
"student.json"
,mode=
'r'
,encoding=
'ansi'
)
as
student_json_file_name:
with open(
"student_json转csv.csv"
,mode=
'w'
,encoding=
'ansi'
,newline=
''
)
as
student_csv_file_name:
read_object=json.load(student_json_file_name);
write=csv.writer(student_csv_file_name);
for
i
in
read_object: #读出来是列表
ledlist=[];
templist=[];
for
a
in
i:
j=a.split(
':'
);
ledlist.append(j[0]);
templist.append(j[1]);
if
len(student_csv)==0:
student_csv.append(ledlist);
student_csv.append(templist);
for
i
in
student_csv:
write.writerow(i);