标准偏差常用于对例如工农业生产，生化、物理等实验数据进行统计分析，理论上是没有逆运算的。但一些特殊情况下，需要根据给出的标准偏差反过来获得一些接近的源数据。这个简单实用的小程序允许用户输入标准偏差和均值及其他辅助参数，根据输入随机模拟出多个接近符合条件的源数据，一方面便于用户对数据和统计结果进行多角度验证分析，一方面也便于学习了解标准偏差公式，为相关高等数学、数值计算方法科学教学提供一定帮助。今后EL会逐步开发其他统计分析程序，与同僚交流。-Standard deviation commonly used in industrial and agricultural production for example, biochemistry, physics and other experimental data for statistical analysis, in theory, there is no inverse operation. However, some special circumstances, given the need to turn to get some close to the standard deviation of the source data. This simple but useful program allows users to enter the mean and standard deviation, and other auxiliary parameters, depending on the input stochastic simulation of multiple source data close to meet the conditions, on the one hand to facilitate users for data and statistical analysis of the results of multi-angle verification, but it is also easy to learn to understand the standard deviation formula, for the relevant mathematics, science teaching numerical methods provide some help. EL future will gradually develop other statistical analysis programs, exchanges with colleagues.