1. A computer-implemented method for executing plot instructions for electronic games to show complex plots, comprising: creating at least one plot object and a plot script in a current scenario based on plot data, by a processor, wherein the plot script comprises at least one plot instruction each of which has a blockage parameter, and wherein each of the at least one plot object is for executing at least one of the at least one plot instruction; reading the plot script to obtain the at least one plot instruction by the processor; for each plot instruction of the at least one plot instruction, analyzing the plot instruction to obtain the plot parameter of the plot instruction by the processor; and determining a blockage type of the plot instruction, by the processor, according to the blockage parameter of the plot instruction; and the at least one plot object executing the at least one plot instruction, by the processor, according to the blockage type of the each plot instruction, wherein a sequence of execution of the at least one plot instruction is adjusted according to the blockage type of the each plot instruction.