Python 练习实例56

Python 练习实例58

Python 练习实例57

Python 100例

题目：画图，学用line画直线。

程序分析：无。

实例

#!/usr/bin/python # -*- coding: UTF-8 -*- if __name__ == '__main__': from Tkinter import * canvas = Canvas(width=300, height=300, bg='green') canvas.pack(expand=YES, fill=BOTH) x0 = 263 y0 = 263 y1 = 275 x1 = 275 for i in range(19): canvas.create_line(x0,y0,x0,y1, width=1, fill='red') x0 = x0 - 5 y0 = y0 - 5 x1 = x1 + 5 y1 = y1 + 5 x0 = 263 y1 = 275 y0 = 263 for i in range(21): canvas.create_line(x0,y0,x0,y1,fill = 'red') x0 += 5 y0 += 5 y1 += 5 mainloop()

以上实例输出结果为：

Python 100例

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Python 练习实例56

Python 练习实例58

2 篇笔记 写笔记

1. #0

      bihar

     sbh***163.com

   8

   参考实例：

   #!/usr/bin/python
   # -*- coding: UTF-8 -*-
   
   from Tkinter import *
   canvas=Canvas(width=300,height=300,bg='white')
   canvas.pack(expand=YES, fill=BOTH)
   x1,y1=50,20
   x2,y2=100,20
   x3,y3=75,40
   x4,y4=75,100
   canvas.create_line(x1,y1,x3,y3, width=3, fill='red')
   canvas.create_line(x2,y2,x3,y3, width=3, fill='red')
   canvas.create_line(x1,y1,x4,y4, width=3, fill='red')
   canvas.create_line(x2,y2,x4,y4, width=3, fill='red')
   mainloop()

   bihar

      bihar

     sbh***163.com

   9年前 (2017-08-09)
2. #0

      bao

     bao***[email protected]

   19

   Python3 中使用 turtle 模块画图。

   import turtle
   
   def drawline(n):
       t=turtle.Pen()
       t.color(0.3,0.8,0.6)  #设置颜色，在0--1之间
       t.begin_fill()   #开始填充颜色
       for i in range(n): #任意边形
           t.forward(50)
           t.left(360/n)
       t.end_fill()    #结束填充颜色
   
   drawline(4)

   bao

      bao

     bao***[email protected]

   9年前 (2017-09-13)

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	$(".comt-author").click(function() {
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	},function(){
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	//Upvote.create('runoobvote-id', {callback: vote_callback});
	var ajaxurl = 'https://www.runoob.com/wp-admin/admin-ajax.php';
	var callback = function(data) {
		//console.log($('#runoobvote-id').upvote('upvoted'));
		//console.log($('#runoobvote-id').upvote('downvoted'));
		//console.log(data);
		_vote_action = data.action;
		id_arr = data.id.split('-');
		um_id= id_arr[2];
		//console.log(um_id);
		
		var re = /^[1-9]+/;
		if (re.test(um_id)) { 
			var ajax_data = {
				_vote_action: _vote_action,
				action: "pinglun_zan",
				um_id: um_id,
				um_action: "ding"
			};
			//console.log(ajax_data);
			$.post(ajaxurl,ajax_data,function(status){
				//if(status.vote_num>999) {
				//	_voteHtml = ''+kFormatter(status.vote_num) +'';
				//	$("#runoobvote-id-" + um_id + " .count").hide().after(_voteHtml);
				//}
				
			});
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	};
	if($('#comments').length && $('.upvotejs').length){
		$('.upvotejs').upvote({id: 14236, callback: callback});
	
		$.post(ajaxurl,{"action":"pinglun_zan","postid":14236},function(data){  
			$(data).each(function(key,value) {
				$("#runoobvote-id-" + value.commid + " .upvote").addClass(value.upvotejs_class);
				$("#runoobvote-id-" + value.commid + " .downvote").addClass(value.downvote_class);
				$("#runoobvote-id-" + value.commid + " .count").text(value.upvote_count);
			})
		},'json');
		
	}
	
	
});
function isBlank(str) {
    return (!str || /^\s*$/.test(str));
}
function kFormatter(num) {
	// return num;
    return Math.abs(num) > 999 ? Math.sign(num)*((Math.abs(num)/1000).toFixed(1)) + 'k' : Math.sign(num)*Math.abs(num)
}