Python 搜索txt中指定字符串，输出该字符串下面两行

[Van様DDF]

举例：
txt 文档中 1600R500 下面两行分别为 语文 1001则 当输入1600R500后 输出 语文 1001

[Van様DDF]

from tkinter import * from tkinter import ttk from tkinter import font import os import arrange # 课程的字典 crslst = {} crslst_in_num = {} # GUI root = Tk() # frame2 # 右侧的内容 frame2 = ttk.Frame(root, borderwidth=5, relief="sunken") frame2.grid(column=1, row=0) # 将数字转换为汉字的字典 numtoch = {1: '一', 2: '二', 3: '三', 4: '四', 5: '五'} # 设置课表周围周一至周五和1至13的标签 for num in list(range(1, 6)): ttk.Label(frame2, text='周' + numtoch[num]).grid(column=num, row=0) emptylist = [] for num in list(range(1, 14)): ttk.Label(frame2, text='第' + str(num) + '节').grid(column=0, row=num) # 课表主体 schd1 = Listbox(frame2, height=13) schd1.grid(column=1, row=1, rowspan=13, sticky=(N, S, E, W)) schd2 = Listbox(frame2, height=13) schd2.grid(column=2, row=1, rowspan=13, sticky=(N, S, E, W)) schd3 = Listbox(frame2, height=13) schd3.grid(column=3, row=1, rowspan=13, sticky=(N, S, E, W)) schd4 = Listbox(frame2, height=13) schd4.grid(column=4, row=1, rowspan=13, sticky=(N, S, E, W)) schd5 = Listbox(frame2, height=13) schd5.grid(column=5, row=1, rowspan=13, sticky=(N, S, E, W)) # 设置字体 ft = font.Font(family='Microsoft YaHei', size=12, weight='normal') # 为了便捷将五天的课表作为一list daylist = (schd1, schd2, schd3, schd4, schd5) # 设置课表 for day in daylist: day['selectmode'] = 'extended' day['exportselection'] = False for num in range(1, 14): day.insert(0, '无课') day['font'] = ft day['width'] = 10 # 课表下四个按钮和一个combobox # 改变颜色 def chcolor(): print("\033[1;42m\033[0m") butdont = ttk.Button(frame2, text='不上课', command=chcolor).grid(column=3, row=15) # 清除选择 butusel = ttk.Button(frame2, text='清除选择').grid(column=4, row=15) Label(frame2, text='选择课表').grid(column=0, row=15, columnspan=2, sticky=W) outputlist = ttk.Combobox(frame2, textvariable=['待选', 'ok']) outputlist.grid(column=1, row=15, columnspan=2, sticky=E) # frame1 # 左侧的内容 frame1 = ttk.Frame(root, borderwidth=5, relief="sunken") frame1.grid(column=0, row=0) # 设置上方的label Label(frame1, text='输入课程信息').grid(column=0, row=0, columnspan=2) # 输入课程号的Label和entry Label(frame1, text='课程号：').grid(column=0, row=1, sticky=W) coursenum = StringVar() inputcoursenum = ttk.Entry(frame1, textvariable=coursenum, width=13) inputcoursenum.grid(column=1, row=1, sticky=E) # 已选课程的listbox Label(frame1, text='已选课程').grid(column=0, row=3, sticky=W) courselist = Listbox(frame1, height=8, width=13, exportselection=False) courselist.grid(column=0, row=4, columnspan=2, rowspan=8, sticky=W) def isrtcrs(): # 加入课程 k = 0 num = 0 print(num, courselist.size()) while num < courselist.size(): if inputcoursenum.get() == courselist.get(num): k = 1 num += 1 if k == 0: courselist.insert(0, inputcoursenum.get()) crslst[inputcoursenum.get()] = [] crslst_in_num[inputcoursenum.get()] = [] print(crslst) print(crslst_in_num) return def delcrs(): # 删除课程 # print(courselist.curselection()) # print(courselist.get(courselist.curselection())) crslst_in_num.pop(courselist.get(courselist.curselection())) crslst.pop(courselist.get(courselist.curselection())) courselist.delete(courselist.curselection()) print(crslst) print(crslst_in_num) return def shwtm(*args): # 当选中一门课程，时间listbox改为对应的时间 print('here') timelist.delete(0, END) tmlst = crslst[courselist.get(courselist.curselection())] if len(tmlst) != 0: for time in tmlst: timelist.insert(END, time) return # courselist的选中事件 courselist.bind('<<ListboxSelect>>', shwtm) # 加入课程和删除课程的按钮 addcourse = ttk.Button(frame1, text='加入课程', command=isrtcrs).grid(column=0, row=2) deletcourse = ttk.Button(frame1, text='删除课程', command=delcrs).grid(column=0, row=12) # 已选课程的时间listbox Label(frame1, text='时间列表').grid(column=1, row=3, sticky=E) timelist = Listbox(frame1, height=8, width=13, exportselection=False) timelist.grid(column=1, row=4, columnspan=2, rowspan=8, sticky=E) def isrttim(): # 加入时间 num = 1 time = [] time_in_num = [] strofod = '' for day in daylist: if len(day.curselection()) != 0: strofod = numtoch[num] temp = day.curselection() for cls in temp: strofod = strofod + ' ' + str(cls + 1) time_in_num.append((num - 1) * 13 + (cls + 1)) num += 1 if len(strofod) != 0: time.append(strofod) strofod = [] if len(time) != 0: timelist.insert(END, time) crslst[courselist.get(courselist.curselection())].append(time) crslst_in_num[courselist.get(courselist.curselection())].append(time_in_num) print(crslst) print(crslst_in_num) return def deltim(): # 删除时间 print(timelist.curselection()) for sel in timelist.curselection(): crslst[courselist.get(courselist.curselection())].pop(sel) crslst_in_num[courselist.get(courselist.curselection())].pop(sel) timelist.delete(timelist.curselection()) print(crslst) print(crslst_in_num) return # 加入时间和删除时间的按钮 addtime = ttk.Button(frame1, text='加入时间', command=isrttim).grid(column=1, row=2) delelttime = ttk.Button(frame1, text='删除时间', command=deltim).grid(column=1, row=12) def creatcourselist(): # 建立课程列文本文档 with open('slist.txt', 'w') as slist: slist.writelines(str(len(crslst_in_num)) + '\n') # 课程数 for crs, tlst in crslst_in_num.items(): slist.writelines(crs + '\n') # 课程名 slist.writelines(str(len(tlst)) + '\n') # 可选时间数 for time in tlst: slist.writelines(str(len(time)) + '\n') # 某一可选时间的节数 for n in time: slist.writelines(str(n) + '\n') # 第几节 return def showoutput(): # 在右侧的选择课表combobox里显示可选课表 filename_list = [] for filename_e in os.listdir('output'): filename_list.append(filename_e) outputlist['values'] = filename_list return def arrg(): # 排课 print('here') creatcourselist() for filename_e in os.listdir('output'): os.remove('output/' + filename_e) arrange.arrangement_mod() showoutput() return # 当用户选择某一可选课表时，展示课表 def showcrslist(*args): print(outputlist.get()) for filename_e in os.listdir('output'): # 寻找所选项对应的文件 if filename_e == outputlist.get(): with open('output/' + filename_e, 'r') as f_r: # 打开对应的文件 nr = f_r.readlines() # 按行读取内容 k = 0 for day in daylist: day.delete(0, END) # 删除课表的原有内容 for num in range(1, 14): # print(nr[k]) # 加入新的内容 if nr[k] == '0\n': day.insert(END, '') else: day.insert(END, nr[k].strip()) k += 1 break # 完成之后退出循环 return # 可选课表combobox选择事件 outputlist.bind('<<ComboboxSelected>>', showcrslist) # 排课的按钮 run = ttk.Button(frame1, text='排课', command=arrg).grid(column=0, row=13, columnspan=2) # frame_search frame_s = ttk.Frame(root, borderwidth=5, relief='sunken') frame_s.grid(column=2, row=0) ttk.Label(frame_s, text='搜索课程').grid(column=0, row=0, columnspan=2) ttk.Label(frame_s, text='课程号：').grid(column=0, row=1, sticky=E) crs_num = StringVar() crs_search = ttk.Entry(frame_s, textvariable=crs_num, width=12).grid(column=1, row=1, sticky=E) search_crs = ttk.Button(frame_s, text='搜索').grid(column=0, row=2) addup = ttk.Button(frame_s, text='加入').grid(column=1, row=2) ttk.Label(frame_s, text='课程号：').grid(column=0, row=3, columnspan=2, sticky=W) ttk.Label(frame_s, text='课程名：').grid(column=0, row=4, columnspan=2, sticky=W) ttk.Label(frame_s, text='上课时间：').grid(column=0, row=5, columnspan=2, sticky=W) root.mainloop()

[extend]

关键是你的文件格式固定吗？ 文件中内容： 1600R400 数学 1002 1600R500 语文 1001 1600R600 语文 1003

c_list=[]

with open('data1.txt','r') as f:
    line=f.readline().strip("\n")
    while line !='':
        #print(line)
        
        if line.strip(" ")=="1600R500":
            #print("yes")
            c_list.append(f.readline().strip("\n"))
            c_list.append(f.readline().strip("\n"))
        line=f.readline().strip("\n")
            
print(c_list)

输出： ['语文', '1001']