学习笔记_py

def createTable(principal, apr):
    for year in range(1, 11):
        principal = principal * (1 + apr)
        print("%2d"%year, end = '')
        total = caculateNum(principal)
        print("*" * total)
    print("0.0K    2.5K    5.0K    7.5K    10.0K")
def caculateNum(principal):
    total = int(principal*4/1000.0)
    return total


def main():
    print("This program plata the growth of a 10_year investment.")
    principal = eval(input("Enter the initial principal:"))
    apr = eval(input("Enter the annualized interest rate:"))
    createTable(principal, apr)
main()
#困死了，明天写注释，脑子已经不清醒了，晚安