KoaHub.JS基于Node.js开发的Koa 生成验证码插件代

npm install ccapvar ccap = require('ccap')

these three ways all will be ok:var captcha = ccap();var captcha = ccap(width, height, offset);var captcha = ccap({width:256,//set width,default is 256height:60,//set height,default is 60offset:40,//set text spacing,default is 40quality:100,//set pic quality,default is 50generate:function(){//Custom the function to generate captcha text //generate captcha text here return text;//return the captcha text}});

var captcha = ccap();var ary = captcha.get();//ary[0] is captcha's text,ary[1] is captcha picture buffer.var text = ary[0];var buffer = ary[1];

var http = require('http');var ccap = require('../')();//Instantiated ccap classhttp.createServer(function (request, response) {if(request.url == '/favicon.ico')return response.end('');//Intercept request favicon.icovar ary = ccap.get();var txt = ary[0];var buf = ary[1];response.end(buf);console.log(txt);}).listen(8124);console.log('Server running at http://127.0.0.1:8124/');

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