價值將不會存儲

Question

我有這個問題一段時間，其中我的一些價值觀只會拒絕存儲。這很可能是因爲我打破了某個地方的規則，但是在搜索了互聯網後相當於而且我找不到問題。

代碼：

#TO SET# 

def min_count_set(): 
    stancount = int(input("How many standard miners do you wish to start with? ")) 
    if (stancount > 10000 or stancount < 0): 
    print("\n Please enter a valid number to start with. \n \n") 
    min_count_set() 
    else: 
    advcount= int(input("How many advanced miners do you wish to start with? ")) 
    if (advcount > 10000 or advcount < 0): 
    print("\n Please enter a valid number to start with. \n \n") 
    min_count_set() 
    else: 
    ultrcount = int(input("How many ultra miners do you wish to start with? ")) 
    if (ultrcount > 10000 or ultrcount < 0): 
    print("\n Please enter a valid number to start with. \n \n") 
    min_count_set() 
    else: 
    print("\n Returning you to the setup menu \n \n") 
    set_mining_values() 

#TO PRINT# 
def view_mining_values(): 
    print("\n Printing all of the variables now.") 
    print("\n Number of standard miners starting with: ") 
    print(stancount) 
    print("\n Number of advanced miners starting with: ") 
    print(advcount) 
    print("\n Number of ultra miners starting with: ") 
    print(ultrcount) 

我收到的錯誤是：

NameError: name 'stancount' is not defined 

我曾試圖給變量stancount一個數字，然後通過輸入運行它，但當時它只是中繼我輸入前輸入的數字。

Answer 1

您必須在函數外部聲明變量並在函數內部修改它們，因爲變量是局部的，因此您在函數內部定義了stancount，然後在離開函數時它基本上被「刪除」 ：我推薦類似這樣的東西;

def min_count_set(): 
    stancount = int(input("How many standard miners do you wish to start with? ")) 
    #do stuff 
    set_mining_values() 
    return stancount 


def view_mining_values(stancount): 
    print("\n Printing all of the variables now.") 
    print("\n Number of standard miners starting with: ") 
    print(stancount) 
    #do more stuff 

stancount=min_count_set() 

這將設置stancount您在功能設置的值，也讓你事後打印

Answer 2

當您嘗試打印它時，stancount變量超出了範圍。

你可以把它傳遞到print_mining_values()函數作爲參數並打印這種方式，

所以print_mining_values()將成爲：

def view_mining_values(sCount, aCount, uCount): 
    print("\n Printing all of the variables now.") 
    print("\n Number of standard miners starting with: ") 
    print(sCount) 
    print("\n Number of advanced miners starting with: ") 
    print(aCount) 
    print("\n Number of ultra miners starting with: ") 
    print(uCount) 

和你min_count_set()功能將成爲：

def min_count_set(): 
    stancount = int(input("How many standard miners do you wish to start with? ")) 
    if (stancount > 10000 or stancount < 0): 
     print("\n Please enter a valid number to start with. \n \n") 
     min_count_set() 
    else: 
     advcount= int(input("How many advanced miners do you wish to start with? ")) 
    if (advcount > 10000 or advcount < 0): 
     print("\n Please enter a valid number to start with. \n \n") 
     min_count_set() 
    else: 
     ultrcount = int(input("How many ultra miners do you wish to start with? ")) 
    if (ultrcount > 10000 or ultrcount < 0): 
     print("\n Please enter a valid number to start with. \n \n") 
     min_count_set() 
    else: 
     print("\n Returning you to the setup menu \n \n") 
    set_mining_values(stancount, advcount, ultrcount) 

注意變量現在傳遞到您的打印功能中。

Answer 3

你可以聲明stancount像一個全局變量：

def min_count_set(): 
    global stancount