The embodiment of the invention relates to a payment method and system, and a storage medium, and belongs to the technical field of Internet application. The payment method comprises the steps that apayment window is monitored; when the situation that the payment window is activated is monitored, an initial function of the activated payment window is skipped into a projection function; characterstring information corresponding to the payment amount is obtained through the projection function; and the amount information is determined according to the character string information. Through thetechnical scheme, provided by the payment method and system, and the storage medium, that if the payment window is activated, the initial function is skipped into the projection function, the character string information is obtained through the projection function, and thus the amount information is determined according to the character string information, the technical effects that conversion between the information is achieved, thus the compatibility of data interaction between different software is achieved, the consumption experience of consumers is improved, the cost is saved for merchants corresponding to the different software, and resources are saved are achieved.