2025年3月4日上課Python 陣列array串列的函數(方法)
animal = ["豬", "牛", "羊", '貓']
#python語言的註解comments
x = animal.copy()
print(animal)
x.reverse() #將x反轉reverse
print(x)
animal.append('狗')
print(animal)
y = animal.copy()
y.reverse() #將x反轉reverse
print(y)
塗偉誠Python與Javascript與EXCEL IRR函數比較
pmt = [0,0,0,0] #塗偉誠程式設計586設定串列list pmt[0]=float(input('躉繳金額: ')) for nper in range(1,4): pmt[nper] = float(input('第'+str(nper)+'期回收: ')) def npv(rate): y = - pmt[0] for j in range(1,4): y = y + pmt[j]/(1+rate)**j return y a, b, gap, f = 0.0, 1.0, 9.0, 9.0 maxerror = 0.000001 loopNumber = 1 while (gap > maxerror and abs(f) > maxerror and loopNumber maxerror and gap > maxerror): if ( f>0 ): a = c else: b = c gap = b-a; print('塗偉誠報酬率: ', c) print('塗偉誠淨現值: ', f) print('塗偉誠迴圈次數: ', loopNumber) 心得：這學期我學習到了很多東西,收穫滿滿。
https://sincewayne.blogspot.com/2025/03/202534python-array.html
回覆刪除第一次上課225. https://sincewayne.blogspot.com/2025/02/chatgpt.html