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本文实例为大家分享了python3.5仿微软记事本的具体代码,供大家参考,具体内容如下
from tkinter import filedialog import tkinter as tk import tkinter.scrolledtext as tkst from tkinter import messagebox import fileinput from tkinter import * from os import * import os import time t1 = [] root = None def die(): root.destroy() def about(): messagebox.showinfo(title = "当前版本为1.0,欢迎使用",message = "**作者:韩东\n**状态:继续努力ing") class editor: def __init__(self,rt): if rt == None: self.t = tk.Tk() else: self.t = tk.Toplevel(rt) self.t.title("文本编辑器%d" % (len(t1)+1)) self.bar = tk.Menu(rt) self.filem = tk.Menu(self.bar) self.filem.add_separator() self.filem.add_command(label = "新建",command = self.neweditor) self.filem.add_separator() self.filem.add_command(label = "打开",command = self.openfile) self.filem.add_separator() self.filem.add_command(label = "保存",command = self.savefile) self.filem.add_separator() self.filem.add_command(label = "关闭",command = self.close) self.filem.add_separator() self.filem.add_command(label = "退出",command = die) self.editm = tk.Menu(self.bar) self.editm.add_separator() self.editm.add_command(label = "复制",command = self.copy) self.editm.add_separator() self.editm.add_command(label = "黏贴",command = self.paste) self.editm.add_separator() self.editm.add_command(label = "剪切",command = self.cut) self.editm.add_separator() self.editm.add_command(label = "删除",command = self.delete_text) self.editm.add_separator() self.editm.add_command(label = "查找",command = self.find_char) self.editm.add_separator() self.editm.add_command(label = "全选",command = self.select_char_all) self.helpm = tk.Menu(self.bar) self.helpm.add_command(label = "关于",command = about) self.bar.add_cascade(label = "文件",menu = self.filem) self.bar.add_cascade(label = "编辑",menu = self.editm) self.bar.add_cascade(label = "帮助",menu = self.helpm) self.t.config(menu = self.bar) self.f = tk.Frame(self.t,width = 512) self.f.pack(expand =1) self.st = tkst.ScrolledText(self.t) self.st.pack(expand = 1) def close(self): self.t.destroy() def openfile(self): oname = filedialog.askopenfilename(filetypes = [("打开文件","*.txt")]) if oname: for line in fileinput.input(oname): self.st.insert("1.0",line) self.t.title(oname) def savefile(self): sname = filedialog.asksaveasfilename(title = "保存好你的宝宝哟",filetypes = [("保存文件","*.txt")]) if sname: ofp = open(sname,"a") ofp.write(self.st.get(1.0,tk.END)) ofp.flush() ofp.close() self.t.title(sname) def neweditor(self): global root t1.append(editor(root)) def copy(self): text = self.st.get(tk.SEL_FIRST,tk.SEL_LAST) self.st.clipboard_clear() self.st.clipboard_append(text) def paste(self): try: text = self.st.selection_get(selection = "CLIPBOARD") self.st.insert(tk.INSERT,text) except tk.TclError: pass def cut(self): text = self.st.get(tk.SEL_FIRST,tk.SEL_LAST) self.st.delete(tk.SEL_FIRST,tk.SEL_LAST) self.st.clipboard_clear() self.st.clipboard_append(text) def delete_text(self): self.st.delete(tk.SEL_FIRST,tk.SEL_LAST) def find_char(self): target = simpledialog.askstring("简易文本编辑器","寻找字符串") if target: end = self.st.index(tk.END) endindex = end.split(".") end_line = int(endindex[0]) end_column = int(endindex[1]) pos_line =1 pos_column=0 length =len(target) while pos_line <= end_line : if pos_line == end_line and pos_column +length > end_column: break elif pos_line < end_line and pos_column + length >100: pos_line = pos_line + 1 pos_column = 100 - (pos_column + length) if pos_column > end_column: break else: pos = str(pos_line)+"."+str(pos_column) where = self.st.search(target,pos,tk.END) if where: print(where) where1 =where.split(".") sele_end_col = str(int(where1[1])+length) sele = where1[0] + "."+ sele_end_col self.st.tag_add(tk.SEL,where,sele) self.st.mark_set(tk.INSERT,sele) self.st.see(tk.INSERT) #self.st.focus() again = messagebox.askokcancel(title = "继续查询么") if again: pos_line = int(where1[0]) pos_column = int(sele_end_col) else: aa=messagebox.showinfo(title = "你终于还是放弃了我",message = "你放弃了我--!") if aa: sys.exit() def select_char_all(self): self.st.tag_add(tk.SEL,1.0,tk.END) self.st.see(tk.INSERT) self.st.focus() if __name__ == "__main__": root = None t1.append(editor(root)) root = t1[0].t root.mainloop()
以上就是本文的全部内容,希望对大家学习python程序设计有所帮助。
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