jQuery随机数字运算验证码基于jquery-1.12.3.min.js制作，验证码数字、运算符号、背景颜色，随机显示，填写计算结果，点验证，如果计算正确，弹出对话框提示正确，计算错误，弹出对话框提示输入有误。-JQuery random number calculation verification code based on jquery-1.12.3.min.js code, digital production, operation symbols, background color, random display, fill in the calculation results, some verification, if the calculations are correct, the pop-up dialog box prompts the correct calculation, error, pop-up dialog box prompts the input error.