PAT 1033 To Fill or not Fill

1033. To Fill or Not to Fill (25)

时间限制
100 ms
内存限制
65536 kB
代码长度限制
16000 B
判题程序
Standard
作者
ZHANG, Guochuan

With highways available, driving a car from Hangzhou to any other city is easy. But since the tank capacity of a car is limited, we have to find gas stations on the way from time to time. Different gas station may give different price. You are asked to carefully design the cheapest route to go.

Input Specification:

Each input file contains one test case. For each case, the first line contains 4 positive numbers: Cmax (<= 100), the maximum capacity of the tank; D (<=30000), the distance between Hangzhou and the destination city; Davg (<=20), the average distance per unit gas that the car can run; and N (<= 500), the total number of gas stations. Then N lines follow, each contains a pair of non-negative numbers: Pi, the unit gas price, and Di (<=D), the distance between this station and Hangzhou, for i=1,...N. All the numbers in a line are separated by a space.

Output Specification:

For each test case, print the cheapest price in a line, accurate up to 2 decimal places. It is assumed that the tank is empty at the beginning. If it is impossible to reach the destination, print "The maximum travel distance = X" where X is the maximum possible distance the car can run, accurate up to 2 decimal places.

Sample Input 1:
50 1300 12 8
6.00 1250
7.00 600
7.00 150
7.10 0
7.20 200
7.50 400
7.30 1000
6.85 300
Sample Output 1:
749.17
Sample Input 2:
50 1300 12 2
7.10 0
7.00 600
Sample Output 2:
The maximum travel distance = 1200.00
思路:首先明确怎么才能得到最小花费,当然是价钱低的气站加气越多越好,这是一个比较复杂的贪心算法,因为还要考虑
距离的问题,要在能到达的情况下找到下一站的位置,
选择下一站有两种情况:(1)在可到达最远距离范围内的气站的价钱都比当前站高。那么现在就要到达后面可达站点之中
最小的那个站点,并且气要加满,因为后面的价钱都会比当前的贵(选择眼前最好的,
其实我个人还想到一种情况,就是到达这个最小站之后发现后面还有比上一个更便宜的站,并且气还有剩余,那不就“亏了”吗,这个时候
要想清楚,到达这个最小站的时候,还是要加气的,别糊涂啊)
还要注意一点,如果在当前站加足够的气,可以到达终点,那么也不需要加满
(2)可达站里存在比当前站价钱低的站,那么此时就不能加满,加满就“亏了”,一定要留到下个站加气,要够“贪”。
这是一个比较复杂的贪心算法,2012年浙江大学机试题目,全场只有三个人AC
代码如下:
#include <stdio.h>
#include <algorithm>
using namespace std;

struct station
{
	float price;
	float dis;
	bool operator <(const station & B)const
	{
		return price<B.price;
	}
}STT[500];

int NextStation(station *STT,int CurPos,int N,int MaxDis)
{   int NextPos;
    int i;
	for(i=0;i<N;i++)
	{
		if(STT[i].dis-STT[CurPos].dis<=MaxDis&&STT[i].dis-STT[CurPos].dis>0)
		{
				NextPos=i;
				break;
		}
	}
	if(NextPos>CurPos)
	return NextPos;
	int MinPos=NextPos;
	//如果存在比当前站价钱低的站点则找距离最近的点
	
		for(i=0;i<CurPos;i++)
		{
			if(STT[i].dis-STT[CurPos].dis<=MaxDis&&STT[i].dis-STT[CurPos].dis>0&&STT[i].dis<STT[MinPos].dis)
		    {
				MinPos=i;
				
		    }
		}
		NextPos=MinPos;
		return NextPos;
}
int main(int argc, char** argv) {
	float Cap;//老司机车的最大气量
	float Dis;//总距离 
	float Davg;//单位气量走的距离
	int N;//气站的数量 
	while(scanf("%f%f%f%d",&Cap,&Dis,&Davg,&N)!=EOF)
	{
		int i;
		for(i=0;i<N;i++)
		{
			scanf("%f%f",&STT[i].price,&STT[i].dis);
		}
	    //按价钱升序排列 
		sort(STT,STT+N);
		float MaxDis=Cap*Davg;//满气能跑的距离
		//有两种情况:1、当前站前面最大距离内无价钱更低的站  2、有价钱更低的站
		int CurPos;//当前所在气站
		int NextPos;//能够达到的最小距离内的价钱最低的气站的位置
		float NextPrice; 
		float CurDis=0;
		float money=0;
		float left=0;
		bool finished=false;
		bool start=true; 
		int Last=0;//最后一个站点 
		for(i=0;i<N;i++)
		{
			if(STT[Last].dis<STT[i].dis)
			{
			Last=i;
			}
		}
		//设置当前站为起始站 
		for(i=0;i<N;i++)
		{
			if(STT[i].dis==0)
			{
				CurPos=i;
				break;
			}
		}
		//无起始站 
		if(i==N)
		{   
		printf("The maximum travel distance = 0.00\n");
		}
		
		else{
		
		
		while(CurDis<Dis&&CurPos<N)
		{ 
		  //如果是最后一个点,要判断能不能跑完
		  if(CurPos==Last)
		  {  //如果加满也跑不完 
		  	if(STT[CurPos].dis+MaxDis<Dis)
		  	{
		  		CurDis+=MaxDis;
		  		break;
		  	}
		  	//如果可以跑完 
		  	else
		  	{
		  		money+=(Dis-CurDis)/Davg*STT[CurPos].price;
		  		CurDis=Dis;
		  		finished=true;
		  		break;
		  	}
		  } 
		  int i;
		   //先找到下一个能到达且价钱最低的站点, 
		   NextPos=NextStation(STT,CurPos,N,MaxDis);
		//如果找不到 ,退出循环 
		if(i==N)
		{   
		    CurDis+=MaxDis;
			break;
		}
		//如果下个站点价钱比当前的低,则不加满,只加到够用到下个站即可,则left变为0 
		if(NextPos<CurPos)
		{  //如果剩余不足走到下一站,再加一点够到地方就行 
		   if((STT[NextPos].dis-STT[CurPos].dis)/Davg-left>0)
		   {
			money+=((STT[NextPos].dis-STT[CurPos].dis)/Davg-left)*STT[CurPos].price;
			CurDis=STT[NextPos].dis;
			CurPos=NextPos;
			left=0;	
		   
		   } 
		   //如果剩余多于到达下一站的量,就不用加油了 
		   else
			{
				left-=(STT[NextPos].dis-STT[CurPos].dis)/Davg;
				CurDis=STT[NextPos].dis;
		      	CurPos=NextPos;
			}
			//关于这两个判断我也没有仔细想到底需不需要保留下来,不过保留下来也便于理解吧 (嗯,后来思考了一下,其实并不存在这个else的情况,因为到达下一站一定是要加气才可到达下下站的 ) 
		}
		//如果下个站点的价钱比当前的高,则加满 
		else if(NextPos>CurPos)
		{
			//如果能直接到头,也不用加满
			if(CurDis+MaxDis>=Dis)
			{
				money+=(Dis-CurDis)/Davg*STT[CurPos].price;
				finished=true;
				break;
			} 
			
			money+=(Cap-left)*STT[CurPos].price;
			left=Cap;
			left-=(STT[NextPos].dis-STT[CurPos].dis)/Davg;
			CurDis=STT[NextPos].dis;
			CurPos=NextPos;
			
		}
	
		} 

    if(finished==false)
	printf("The maximum travel distance = %.2f\n",CurDis);
    if(finished==true)
    {
    	printf("%.2f\n",money);
    }
	
	 
    }

			
   } 


	return 0;
}


import os import re import sys import threading import tkinter as tk from tkinter import ttk, filedialog, messagebox, scrolledtext import fnmatch import chardet import docx from openpyxl import load_workbook import PyPDF2 import xlrd class FileSearchApp: def __init__(self, master): self.master = master master.title("高级文件搜索工具") master.geometry("1200x800") master.minsize(900, 650) # 设置现代主题 self.style = ttk.Style() self.style.theme_use("vista" if sys.platform == "win32" else "aqua") # 创建主框架 main_frame = ttk.Frame(master, padding=10) main_frame.pack(fill=tk.BOTH, expand=True) # 创建搜索面板 search_frame = ttk.LabelFrame(main_frame, text="搜索选项", padding=10) search_frame.pack(fill=tk.X, padx=5, pady=5) # 搜索目录 dir_frame = ttk.Frame(search_frame) dir_frame.pack(fill=tk.X, pady=5) ttk.Label(dir_frame, text="搜索目录:").pack(side=tk.LEFT, padx=(0, 5)) self.dir_entry = ttk.Entry(dir_frame, width=50) self.dir_entry.pack(side=tk.LEFT, fill=tk.X, expand=True, padx=5) self.dir_entry.insert(0, os.getcwd()) ttk.Button(dir_frame, text="浏览...", command=self.browse_directory).pack(side=tk.RIGHT) # 关键词和文件过滤 filter_frame = ttk.Frame(search_frame) filter_frame.pack(fill=tk.X, pady=5) ttk.Label(filter_frame, text="关键词:").pack(side=tk.LEFT, padx=(0, 5)) self.keyword_entry = ttk.Entry(filter_frame) self.keyword_entry.pack(side=tk.LEFT, fill=tk.X, expand=True, padx=5) ttk.Label(filter_frame, text="文件过滤:").pack(side=tk.LEFT, padx=(10, 5)) self.filter_entry = ttk.Entry(filter_frame, width=30) self.filter_entry.pack(side=tk.LEFT, padx=5) self.filter_entry.insert(0, "*.c;*.h;*.prm;*.xlsx;*.xls;*.doc;*.docx;*.pdf") # 搜索选项 options_frame = ttk.Frame(search_frame) options_frame.pack(fill=tk.X, pady=10) self.case_var = tk.BooleanVar(value=False) ttk.Checkbutton(options_frame, text="忽略大小写", variable=self.case_var).pack(side=tk.LEFT, padx=10) self.regex_var = tk.BooleanVar(value=False) ttk.Checkbutton(options_frame, text="正则表达式", variable=self.regex_var).pack(side=tk.LEFT, padx=10) self.binary_var = tk.BooleanVar(value=False) ttk.Checkbutton(options_frame, text="包含二进制", variable=self.binary_var).pack(side=tk.LEFT, padx=10) self.limit_var = tk.BooleanVar(value=True) ttk.Checkbutton(options_frame, text="限制大小(100MB)", variable=self.limit_var).pack(side=tk.LEFT, padx=10) self.highlight_var = tk.BooleanVar(value=True) ttk.Checkbutton(options_frame, text="关键字高亮", variable=self.highlight_var).pack(side=tk.LEFT, padx=10) # 按钮面板 button_frame = ttk.Frame(search_frame) button_frame.pack(fill=tk.X, pady=10) self.search_button = ttk.Button(button_frame, text="开始搜索", command=self.start_search) self.search_button.pack(side=tk.LEFT, padx=5) self.stop_button = ttk.Button(button_frame, text="停止搜索", command=self.stop_search, state=tk.DISABLED) self.stop_button.pack(side=tk.LEFT, padx=5) self.export_button = ttk.Button(button_frame, text="导出结果", command=self.export_results) self.export_button.pack(side=tk.LEFT, padx=5) # 状态栏 - 修复布局问题 status_frame = ttk.Frame(main_frame) status_frame.pack(fill=tk.X, padx=5, pady=(0, 5)) self.status_label = ttk.Label(status_frame, text="就绪", font=("Arial", 9)) self.status_label.pack(side=tk.LEFT, anchor='w') self.progress_var = tk.DoubleVar() self.progress_bar = ttk.Progressbar( status_frame, variable=self.progress_var, length=200, mode='determinate' ) self.progress_bar.pack(side=tk.LEFT, fill=tk.X, expand=True, padx=10) self.stats_label = ttk.Label(status_frame, text="", font=("Arial", 9)) self.stats_label.pack(side=tk.RIGHT, padx=(0, 10)) # 结果面板 results_frame = ttk.LabelFrame(main_frame, text="搜索结果", padding=10) results_frame.pack(fill=tk.BOTH, expand=True, padx=5, pady=5) # 分割窗格 paned_window = ttk.PanedWindow(results_frame, orient=tk.HORIZONTAL) paned_window.pack(fill=tk.BOTH, expand=True) # 文件列表 file_list_frame = ttk.Frame(paned_window) paned_window.add(file_list_frame, weight=1) self.file_tree = ttk.Treeview( file_list_frame, columns=("filename", "path"), show="headings", selectmode="browse" ) self.file_tree.heading("filename", text="文件名") self.file_tree.heading("path", text="路径") self.file_tree.column("filename", width=200, anchor="w") self.file_tree.column("path", width=400, anchor="w") file_scroll = ttk.Scrollbar( file_list_frame, orient=tk.VERTICAL, command=self.file_tree.yview ) self.file_tree.configure(yscrollcommand=file_scroll.set) self.file_tree.pack(side=tk.LEFT, fill=tk.BOTH, expand=True) file_scroll.pack(side=tk.RIGHT, fill=tk.Y) self.file_tree.bind('<<TreeviewSelect>>', self.show_file_content) self.file_tree.bind('<Double-1>', self.open_selected_file) # 文件右键菜单 self.file_menu = tk.Menu(self.master, tearoff=0) self.file_menu.add_command(label="打开文件", command=self.open_selected_file) self.file_menu.add_command(label="打开文件位置", command=self.open_file_location) self.file_tree.bind("<Button-3>", self.show_file_context_menu) # 文件内容预览 content_frame = ttk.Frame(paned_window) paned_window.add(content_frame, weight=2) self.content_text = scrolledtext.ScrolledText( content_frame, wrap=tk.WORD, font=("Consolas", 10), padx=5, pady=5 ) self.content_text.pack(fill=tk.BOTH, expand=True) # 文本标签配置 self.content_text.tag_configure("match", background="yellow") self.content_text.tag_configure("linenum", foreground="blue", font=("Consolas", 9)) self.content_text.tag_configure("header", foreground="darkgreen", font=("Arial", 10, "bold")) self.content_text.tag_configure("warning", foreground="red", font=("Arial", 10, "italic")) # 文本右键菜单 text_menu = tk.Menu(self.master, tearoff=0) text_menu.add_command(label="复制", command=self.copy_selected_text) self.content_text.bind("<Button-3>", lambda e: text_menu.tk_popup(e.x_root, e.y_root)) # 初始化变量 self.results = {} self.all_files = [] self.stop_requested = False self.search_thread = None def browse_directory(self): directory = filedialog.askdirectory(title="选择搜索目录") if directory: self.dir_entry.delete(0, tk.END) self.dir_entry.insert(0, directory) def update_status(self, text): """更新状态标签""" self.status_label.config(text=text) def update_stats(self, text): """更新统计标签""" self.stats_label.config(text=text) def update_progress(self, value, total): """更新进度条和统计信息""" self.progress_var.set(value) percentage = round((value / total) * 100, 1) if total > 0 else 0 self.stats_label.config( text=f"处理中: {value}/{total} 文件 ({percentage}%)" ) def reset_search_state(self): """重置搜索按钮状态""" self.search_button.config(state=tk.NORMAL) self.stop_button.config(state=tk.DISABLED) def start_search(self): # 重置状态 self.progress_var.set(0) self.stop_requested = False self.results.clear() self.all_files.clear() self.file_tree.delete(*self.file_tree.get_children()) self.content_text.delete(1.0, tk.END) self.update_status("正在搜索...") self.search_button.config(state=tk.DISABLED) self.stop_button.config(state=tk.NORMAL) self.update_stats("扫描文件中...") # 获取搜索参数 directory = self.dir_entry.get().strip() keyword = self.keyword_entry.get().strip() file_filter = self.filter_entry.get().strip() # 验证输入 if not directory or not os.path.isdir(directory): messagebox.showerror("错误", "请选择有效的搜索目录") self.reset_search_state() return if not keyword: messagebox.showerror("错误", "请输入搜索关键词") self.reset_search_state() return # 编译搜索模式 flags = re.IGNORECASE if self.case_var.get() else 0 try: if self.regex_var.get(): pattern = re.compile(keyword, flags) else: pattern = re.compile(re.escape(keyword), flags) except re.error as e: messagebox.showerror("正则表达式错误", f"无效的正则表达式: {str(e)}") self.reset_search_state() return # 处理文件过滤器 - 修复过滤逻辑 if not file_filter: filter_patterns = ["*"] else: # 修复:处理带分号的过滤模式 filter_patterns = [pat.strip() for pat in file_filter.split(";") if pat.strip()] # 在后台线程中执行搜索 self.search_thread = threading.Thread( target=self.perform_search, args=(directory, filter_patterns, pattern), daemon=True ) self.search_thread.start() def perform_search(self, directory, filter_patterns, pattern): """在后台线程中执行文件搜索""" try: # 收集所有匹配的文件 - 修复文件过滤问题 self.all_files = [] for root, _, files in os.walk(directory): if self.stop_requested: self.update_status("搜索已取消") return for file in files: if self.stop_requested: break file_path = os.path.join(root, file) # 检查文件大小限制 if self.limit_var.get(): try: if os.path.getsize(file_path) > 100 * 1024 * 1024: # 100MB continue except: continue # 修复:正确匹配文件扩展名 if not any(fnmatch.fnmatch(file, pat) for pat in filter_patterns): continue self.all_files.append(file_path) total_files = len(self.all_files) self.update_progress(0, total_files) self.update_stats(f"扫描到 {total_files} 个文件") # 搜索每个文件 matches_found = 0 for i, file_path in enumerate(self.all_files): if self.stop_requested: break # 更新进度 self.update_progress(i + 1, total_files) # 检查二进制文件 if not self.binary_var.get() and self.is_binary(file_path): continue # 搜索文件内容 - 修复内容搜索问题 matches = self.search_file_content(file_path, pattern) if matches: self.results[file_path] = matches matches_found += len(matches) self.add_file_to_list(file_path) # 更新完成状态 status = f"搜索完成 - 找到 {len(self.results)} 个文件, {matches_found} 个匹配项" if self.stop_requested: status = f"搜索已取消 - 找到 {len(self.results)} 个文件, {matches_found} 个匹配项" self.update_status(status) self.update_progress(total_files, total_files) except Exception as e: self.update_status(f"搜索错误: {str(e)}") finally: self.reset_search_state() self.search_thread = None def search_file_content(self, file_path, pattern): """根据文件类型搜索内容""" _, ext = os.path.splitext(file_path) ext_lower = ext.lower() # 修复:确保所有支持的文件类型都能被搜索 if ext_lower in ['.c', '.h', '.prm', '.txt', '.py', '.java', '.cpp', '.hpp', '.log']: return self.search_in_text_file(file_path, pattern) elif ext_lower in ['.docx', '.doc', '.xlsx', '.xls', '.pdf']: return self.search_in_office_file(file_path, pattern) else: return [] # 其他文件类型不搜索 def search_in_text_file(self, file_path, pattern): """在文本文件中搜索匹配项""" try: encoding = self.detect_encoding(file_path) matches = [] with open(file_path, 'r', encoding=encoding, errors='replace') as f: for line_num, line in enumerate(f, 1): if pattern.search(line): # 截断过长的行 cleaned_line = line.strip() if len(cleaned_line) > 150: cleaned_line = cleaned_line[:150] + "..." matches.append((line_num, cleaned_line)) return matches except Exception as e: print(f"搜索文本文件出错: {file_path} | {str(e)}") return [] def search_in_office_file(self, file_path, pattern): """修复Office文件搜索逻辑""" _, ext = os.path.splitext(file_path) ext_lower = ext.lower() matches = [] try: # DOCX文件处理 if ext_lower == '.docx': doc = docx.Document(file_path) for i, para in enumerate(doc.paragraphs, 1): if para.text and pattern.search(para.text): content = para.text.strip() if len(content) > 100: content = content[:100] + "..." matches.append((i, f"段落 {i}: {content}")) for table in doc.tables: for row_idx, row in enumerate(table.rows, 1): for cell_idx, cell in enumerate(row.cells, 1): if cell.text and pattern.search(cell.text): content = cell.text.strip() if len(content) > 100: content = content[:100] + "..." matches.append((row_idx, f"表格 行{row_idx}列{cell_idx}: {content}")) # XLSX文件处理 elif ext_lower == '.xlsx': wb = load_workbook(file_path, read_only=True, data_only=True) for sheet_name in wb.sheetnames: sheet = wb[sheet_name] for row_idx, row in enumerate(sheet.iter_rows(values_only=True), 1): for col_idx, cell in enumerate(row, 1): if cell is not None and pattern.search(str(cell)): cell_ref = f"{chr(64+col_idx)}{row_idx}" content = str(cell).strip() if len(content) > 100: content = content[:100] + "..." matches.append((row_idx, f"工作表 '{sheet_name}' 单元格 {cell_ref}: {content}")) # XLS文件处理 elif ext_lower == '.xls': wb = xlrd.open_workbook(file_path) for sheet_idx in range(wb.nsheets): sheet = wb.sheet_by_index(sheet_idx) for row_idx in range(sheet.nrows): for col_idx in range(sheet.ncols): cell = sheet.cell_value(row_idx, col_idx) if cell and pattern.search(str(cell)): cell_ref = f"{chr(65+col_idx)}{row_idx+1}" content = str(cell).strip() if len(content) > 100: content = content[:100] + "..." matches.append((row_idx+1, f"工作表 '{sheet.name}' 单元格 {cell_ref}: {content}")) # PDF文件处理 - 修复内容提取 elif ext_lower == '.pdf': with open(file_path, 'rb') as f: pdf = PyPDF2.PdfReader(f) for page_num in range(len(pdf.pages)): page_text = pdf.pages[page_num].extract_text() if page_text: # 修复:查找所有匹配项 for match in pattern.finditer(page_text): # 提取匹配上下文 start = max(0, match.start() - 30) end = min(len(page_text), match.end() + 70) context = page_text[start:end].replace('\n', ' ').strip() matches.append((page_num+1, f"页面 {page_num+1}: {context}")) except Exception as e: print(f"搜索Office文件出错: {file_path} | {str(e)}") return [] return matches def is_binary(self, file_path): """检测文件是否为二进制""" try: with open(file_path, 'rb') as f: chunk = f.read(1024) if b'\x00' in chunk: # 二进制文件通常包含空字节 return True # 检测字符编码 result = chardet.detect(chunk) return result['encoding'] is None or 'ascii' not in result['encoding'].lower() except: return True def detect_encoding(self, file_path): """检测文件编码""" with open(file_path, 'rb') as f: raw_data = f.read(4096) result = chardet.detect(raw_data) return result['encoding'] or 'utf-8' def stop_search(self): """停止搜索""" self.stop_requested = True self.update_status("正在停止搜索...") def show_file_content(self, event=None): """在预览区域显示文件内容""" selected = self.file_tree.selection() if not selected: return file_path = self.file_tree.item(selected[0])['values'][1] matches = self.results.get(file_path, []) self.content_text.config(state=tk.NORMAL) self.content_text.delete(1.0, tk.END) # 显示文件头信息 self.content_text.insert(tk.END, f"文件: {file_path}\n", "header") self.content_text.insert(tk.END, f"共找到 {len(matches)} 个匹配项\n\n", "header") # 显示匹配内容 for line_num, content in matches: self.content_text.insert(tk.END, f"行 {line_num}: ", "linenum") # 高亮显示匹配的关键字 if self.highlight_var.get(): start_idx = "1.0" line_tag = f"line_{line_num}" self.content_text.insert(tk.END, content + "\n\n", line_tag) # 搜索并高亮匹配文本 pattern = re.escape(self.keyword_entry.get().strip()) if self.case_var.get(): pattern = f"(?i){pattern}" idx = "1.0" while True: idx = self.content_text.search( pattern, idx, stopindex=tk.END, regexp=True, nocase=self.case_var.get() ) if not idx: break end_idx = f"{idx}+{len(self.keyword_entry.get().strip())}c" self.content_text.tag_add("match", idx, end_idx) idx = end_idx else: self.content_text.insert(tk.END, content + "\n\n") self.content_text.config(state=tk.DISABLED) def open_selected_file(self, event=None): """打开选中的文件""" selected = self.file_tree.selection() if selected: file_path = self.file_tree.item(selected[0])['values'][1] if os.path.exists(file_path): os.startfile(file_path) if sys.platform == "win32" else os.system(f'open "{file_path}"') def open_file_location(self): """打开文件所在位置""" selected = self.file_tree.selection() if selected: file_path = self.file_tree.item(selected[0])['values'][1] if os.path.exists(file_path): if sys.platform == "win32": os.startfile(os.path.dirname(file_path)) elif sys.platform == "darwin": os.system(f'open "{os.path.dirname(file_path)}"') else: os.system(f'xdg-open "{os.path.dirname(file_path)}"') def copy_selected_text(self): """复制选中的文本""" if self.content_text.tag_ranges(tk.SEL): selected = self.content_text.get(tk.SEL_FIRST, tk.SEL_LAST) self.master.clipboard_clear() self.master.clipboard_append(selected) def show_file_context_menu(self, event): """显示文件右键菜单""" item = self.file_tree.identify_row(event.y) if item: self.file_tree.selection_set(item) self.file_menu.tk_popup(event.x_root, event.y_root) def export_results(self): """导出搜索结果到文本文件""" if not self.results: messagebox.showinfo("导出", "没有搜索结果可导出") return file_path = filedialog.asksaveasfilename( title="保存搜索结果", filetypes=[("文本文件", "*.txt"), ("所有文件", "*.*")], defaultextension=".txt" ) if not file_path: return try: with open(file_path, 'w', encoding='utf-8') as f: f.write(f"搜索目录: {self.dir_entry.get()}\n") f.write(f"关键词: {self.keyword_entry.get()}\n") f.write(f"文件过滤: {self.filter_entry.get()}\n") f.write(f"匹配选项: {'忽略大小写' if self.case_var.get() else '区分大小写'}, " f"{'正则表达式' if self.regex_var.get() else '普通文本'}\n\n") for file_path, matches in self.results.items(): f.write(f"文件: {file_path}\n") f.write(f"匹配数: {len(matches)}\n") for line_num, content in matches: f.write(f"行 {line_num}: {content}\n") f.write("\n") messagebox.showinfo("导出成功", f"搜索结果已保存到:\n{file_path}") except Exception as e: messagebox.showerror("导出错误", f"保存文件失败: {str(e)}") def main(): root = tk.Tk() app = FileSearchApp(root) root.mainloop() if __name__ == "__main__": main() 1、由于布局变化,进度条的显示出现问题。2、文件过滤使用时,检索不到文件,文件夹里确保有文件的前提下。3、将文件过滤里面的类型去除掉后,能够搜索到文件,但是搜索不到文件里面的内容,也就是找不到匹配项这几个问题仍然存在。我附上代码你排查问题
最新发布
09-13
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