Question

我是python的新手，我是如何完成任务的，在最后一步中我被阻止了。我在FileA中有时间“ if p ['value'] =='0.04'：”。我想在第二次发生时打破循环。因为我在FileA中有30次“ 0.04”。如何破解。

代码：

import glob,os
import sys
import json
import pathlib
import xlwt
wb = xlwt.Workbook()
ws = wb.add_sheet("Excel_resu", cell_overwrite_ok=True)

    def main(argv):
        for root, dirs, files in os.walk(r'C:\Users\XXX\Desktop\New_Folder'):
                  for filename in files:
                    if "FileA.json" in filename:
                        FileA = (os.path.join(root,filename))

                    if "FileB.json" in filename:
                            FileB = (os.path.join(root, filename))

                            test(FileA, FileB)

    def test(FileA,FileA):

        count =0

        with open(FileA) as json_file:
            data = json.load(json_file)
            for p in data:
                if p['value'] == '0.04':
                    print(p['Time'])
                    GetTime = (p['Time'])
                    with open(FileB) as json_file1:
                        data1 = json.load(json_file1)
                        for q in data1:
                            if q['Time'] == GetTime:
                                print(q['Gettar'])
                                resu = q['Gettar']
                                count = count+1
                                ws.write(count, 3, resu)
                                wb.save("Excel.xls")

Answer 1

进行新计数以检查该值，并在第二次出现时中断for：

 with open(FileA) as json_file:
        data = json.load(json_file)
        value_count = 0
        for p in data:
            if value_count => 1:
                break
            elif p['value'] == '0.04':
                value_count = value_count + 1
                print(p['Time'])
                GetTime = (p['Time'])
                with open(FileB) as json_file1:
                .....

Answer 2

我有点困惑，但是我认为这应该对您有用，请尝试还原

import glob,os
import sys
import json
import pathlib
import xlwt
wb = xlwt.Workbook()
ws = wb.add_sheet("Excel_resu", cell_overwrite_ok=True)

    def main(argv):
        for root, dirs, files in os.walk(r'C:\Users\XXX\Desktop\New_Folder'):
                  for filename in files:
                    if "FileA.json" in filename:
                        FileA = (os.path.join(root,filename))

                    if "FileB.json" in filename:
                            FileB = (os.path.join(root, filename))

                            test(FileA, FileB)

    def test(FileA,FileA):

        count =0

        with open(FileA) as json_file:
            data = json.load(json_file)
            for p in data:
                if p['value'] == '0.04' and count>=1:

                    pass
                elif p["value"]=="0.04" and count==0:
                    print(p['Time'])
                    GetTime = (p['Time'])
                    with open(FileB) as json_file1:
                        data1 = json.load(json_file1)
                        for q in data1:
                            if q['Time'] == GetTime:
                                print(q['Gettar'])
                                resu = q['Gettar']
                                count = count+1
                                ws.write(count, 3, resu)
                                wb.save("Excel.xls")

看这个例子，了解我在评论中的意思：

count =0    

    def test(FileA,FileB,count):



        with open(FileA) as json_file:
            data = json.load(json_file)
            for p in data:
                if p['value'] == '0.04' and count>=1:

                    pass
                elif p["value"]=="0.04" and count==0:
                    print(p['Time'])
                    GetTime = (p['Time'])
                    with open(FileB) as json_file1:
                        data1 = json.load(json_file1)
                        for q in data1:
                            if q['Time'] == GetTime:
                                print(q['Gettar'])
                                resu = q['Gettar']
                                count = count+1
                                ws.write(count, 3, resu)
                                wb.save("Excel.xls")
        return count     

    #assuming calling the function from here:
    for i in range(number_of_files):    
        count=test(FileA,FileB,count)

Answer 3

根据新信息和我们的讨论，尝试使用此代码。它可能会引起一个问题，但是请尝试一下，并让我知道，不要忘记在代码中进行相关更改，例如在字典的键等中，它们不应太多

import glob,os
import sys
import json
import pathlib
import xlwt
wb = xlwt.Workbook()


ws = wb.add_sheet("Excel_resu", cell_overwrite_ok=False)


count2=0


def main(argv):
    for root, dirs, files in os.walk(r'C:\Users\XXX\Desktop\New_Folder'):
              for filename in files:
                if "FileA.json" in filename:
                    FileA= (os.path.join(root,filename))

                if "FileB.json" in filename:
                        FileB= (os.path.join(root, filename))
                        count2+=1
                        test(FileA,FileB,count2)

def test(FileA,FileB,count2):
    count=0

    with open(FileA) as json_file:
        data = json.load(json_file)
        for p in data:
            #print (p)
            if p['EgoSpeed'] == '0.04' and count >=1:
                pass
            elif p['EgoSpeed'] == '0.04' and count ==0:
                #print(p['Time'])
                GetTime = (p['AdtfTime'])
                with open(FileB) as json_file1:
                    data1 = json.load(json_file1)
                    for q in data1:

                        #print(q)
                        if q['AdtfTime'] == GetTime:
                            #print(q['Target1_ForwardDist'])
                            res = q['Target1_ForwardDist']

                            cols=["B"]

                            #print(count)    
                            row=ws.row(count2)
                            for index,col in enumerate(cols):

                                row.write(index,res)
                            wb.save("Dilip_test.xls")


if __name__ == "__main__":
   main(sys.argv[1:])

如何打破python中的循环

3 个答案: