1需要源码
2需要打印变量，自定义文字，条码，二维码，
3完善的打印模板 可自定义位置 文字大小 图片大小 ，需和下图一模一样[![https://img.alicdn.com/imgextra/i2/2993280127/O1CN01M1HANj1CoDB4fAhGQ_!!2993280127.jpg](https://img.alicdn.com/imgextra/i2/2993280127/O1CN01M1HANj1CoDB4fAhGQ_!!2993280127.jpg "https://img.alicdn.com/imgextra/i2/2993280127/O1CN01M1HANj1CoDB4fAhGQ_!!2993280127.jpg")](https://img.alicdn.com/imgextra/i2/2993280127/O1CN01M1HANj1CoDB4fAhGQ_!!2993280127.jpg "https://img.alicdn.com/imgextra/i2/2993280127/O1CN01M1HANj1CoDB4fAhGQ_!!2993280127.jpg")[![https://img.alicdn.com/imgextra/i1/2993280127/O1CN01VXPJOY1CoDAyoy6ll_!!2993280127.jpg](https://img.alicdn.com/imgextra/i1/2993280127/O1CN01VXPJOY1CoDAyoy6ll_!!2993280127.jpg "https://img.alicdn.com/imgextra/i1/2993280127/O1CN01VXPJOY1CoDAyoy6ll_!!2993280127.jpg")](https://img.alicdn.com/imgextra/i1/2993280127/O1CN01VXPJOY1CoDAyoy6ll_!!2993280127.jpg "https://img.alicdn.com/imgextra/i1/2993280127/O1CN01VXPJOY1CoDAyoy6ll_!!2993280127.jpg")