全局变量和局部变量在for循环的使用
imageloc字典作为全局变量，然后添加到全局的列表中，每次for循环都会将最新的元素改变之前for循环添加的元素。而imageloc字典作为局部变量，则不会影响。
import numpy as np
originaljson = [
{
"joints_vis": [
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1
],
"joints": [
[
804.0,
711.0
],
[
816.0,
510.0
],
[
908.0,
438.0
],
[
1040.0,
454.0
],
[
906.0,
528.0
],
[
883.0,
707.0
],
[
974.0,
446.0
],
[
985.0,
253.0
],
[
982.7591,
235.9694
],
[
962.2409,
80.0306
],
[
869.0,
214.0
],
[
798.0,
340.0
],
[
902.0,
253.0
],
[
1067.0,
253.0
],
[
1167.0,
353.0
],
[
1142.0,
478.0
]
],
"image": "005808361.jpg",
"scale": 4.718488,
"center": [
966.0,
340.0
]
},
{
"joints_vis": [
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1
],
"joints": [
[
317.0,
412.0
],
[
318.0,
299.0
],
[
290.0,
274.0
],
[
353.0,
275.0
],
[
403.0,
299.0
],
[
394.0,
409.0
],
[
322.0,
275.0
],
[
327.0,
172.0
],
[
329.9945,
162.1051
],
[
347.0055,
105.8949
],
[
296.0,
135.0
],
[
281.0,
208.0
],
[
296.0,
167.0
],
[
358.0,
177.0
],
[
387.0,
236.0
],
[
392.0,
167.0
]
],
"image": "052475642.jpg",
"scale": 1.761835,
"center": [
316.0,
220.0
]
},
{
"joints_vis": [
0,
1,
1,
1,
1,
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1
],
"joints": [
[
-1.0,
-1.0
],
[
1033.0,
649.0
],
[
1072.0,
474.0
],
[
973.0,
496.0
],
[
961.0,
650.0
],
[
-1.0,
-1.0
],
[
1023.0,
485.0
],
[
1031.0,
295.0
],
[
1026.998,
281.6248
],
[
997.002,
181.3752
],
[
988.0,
294.0
],
[
1018.0,
317.0
],
[
1070.0,
290.0
],
[
991.0,
300.0
],
[
912.0,
345.0
],
[
842.0,
330.0
]
],
"image": "052475643.jpg",
"scale": 3.139233,
"center": [
1030.0,
396.0
]
},
{
"joints_vis": [
0,
1,
1,
1,
1,
0,
1,
1,
1,
1,
1,
1,
1,
1,
1,
1
],
"joints": [
[
-1.0,
-1.0
],
[
804.0,
659.0
],
[
786.0,
498.0
],
[
868.0,
509.0
],
[
860.0,
693.0
],
[
-1.0,
-1.0
],
[
827.0,
504.0
],
[
840.0,
314.0
],
[
838.9079,
308.9326
],
[
816.0921,
203.0674
],
[
698.0,
264.0
],
[
740.0,
297.0
],
[
790.0,
300.0
],
[
889.0,
328.0
],
[
915.0,
452.0
],
[
906.0,
553.0
]
],
"image": "004645041.jpg",
"scale": 3.248877,
"center": [
809.0,
403.0
]
}
]
newjson = []
# imageloc = {}
for i in range(len(originaljson)):
imageloc = {}
box = []
imagename = originaljson[i]["image"].split('.')[0]
box.append(1)
box.append(2)
box.append(3)
box.append(4)
imageloc[imagename] = box
newjson.append(imageloc)