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python 普通存款（单利）计算公式：

 

代码如下：

#普通存款 单利计算公式：a:原值，n:计算年限，li：利率（小数）,
def danli(a,n,li):print("普通存款(单利)计算公式：")print("存款本金："+str(a)+",存款年限："+str(n)+",存款利率："+str(li))l=a*li*nb=a+lprint(str(n)+"年后：存款金额:"+str(b)+",利息："+str(l))def main():danli(50000,5,0.034)print("=================================")danli(50000,10,0.034)print("=================================")danli(50000,15,0.034)print("=================================")danli(50000,20,0.034)

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