Having determined the sequence that work well is usually to be tackled in, some operations have to have a detailed timetable showing at what time or date jobs should start so when they must end ' this really is scheduling. Schedules are familiar statements of volume and timing in several consumer environments. For example, a bus schedule demonstrates more buses are put on routes at more frequent intervals during rush-hour periods. The bus schedule shows enough time each bus is because of go to each stage in the route. Schedules of training are widely-used in operations where some planning must be sure that customer demand is met. Other operations, including rapid-response service operations where customers arrive in an unplanned way, cannot schedule the operation in the short-term sense. They can only respond at some time demand is positioned upon them. The scheduling activity is one in the most complex tasks in operations management. First, schedulers must deal with several unique kinds of resource simultaneously. Machines will have different capabilities and capacities; staff can have different skills. More importantly, the quantity of possible schedules increases rapidly as the number of activities and processes increases. Stopping trading is an important part of the plan. The category of surplus value clearly reflects the antagonism between capital and labor, because it is the multiplication of variable capital and is possessed by the capitalist without compensation; And the category of profit, it seems, means that capital itself can create a new value. This reversal is the inevitable product of capitalist mode of production. First, because the constant capital + variable capital (c+v) consumed by the capitalist production is converted into cost price, thus concealing the essential difference between the invariant capital (c) and the variable capital (v); Second, because Labour costs into wages, show the labor remuneration, so surplus value into profit, has nothing to do with laborer labor, virtually the only product of the total capital; Finally, the surplus value into profit, on the premise of rate of surplus value into profit margins, namely by means of profit margins, only costs more than the forehead has translate into profits, further into the upfront costs in a certain cycle period more than the balance of its own price. In real life, industry companies is usually based on the established level of profitability, and then obtained the expected LiRunLiang on profit margins by prepaid cost, but it is not a subjective illusion, but objectively completely possible. The scientific argument and practice shows that this profit is actually the increment of variable cost. In short, profit is an intrinsic or an entity, while the rest is an external phenomenon or form. The investment of securities provides an important means for the central bank to conduct financial macro-control, which is of great significance to the sustainable and efficient development of the national economy.