Question

我的任务是编写一个程序，要求用户输入一周中每一天在食品和天然气上花费的金额。计算并显示用户每天在食物上花费超过20美元，在天然气上花费超过10美元/天的天数。我的问题是我不知道如何使输出说：“您在一周的_天内每天花在食物上的钱超过20美元。”而且，“一周之内，您每天在汽油上的花费超过10美元。”因为我必须在引号之间输入答案，要么说语法错误，要么将其放在新行中。我的代码是：

over20food=0;
over10gas=0;
food=input("Please enter the amount spent on food on Monday:");
if (food>20):
    over20food = over20food + 1;
gas=input("Please enter the amount spent on gas on Monday:");
if (gas>10):
    over10gas = over10gas + 1;
food=input("Please enter the amount spent on food on Tuesday:");
if (food>20):
    over20food = over20food + 1;
gas=input("Please enter the amount spent on gas on Tuesday:");
if (gas>10):
    over10gas = over10gas + 1;
food=input("Please enter the amount spent on food on Wednesday:");
if (food>20):
    over20food = over20food + 1;
gas=input("Please enter the amount spent on gas on Wednesday:");
if (gas>10):
    over10gas = over10gas + 1;
food=input("Please enter the amount spent on food on Thursday:");
if (food>20):
    over20food = over20food + 1;
gas=input("Please enter the amount spent on gas on Thursday:");
if (gas>10):
    over10gas = over10gas + 1;
food=input("Please enter the amount spent on food on Friday:");
if (food>20):
    over20food = over20food + 1;
gas=input("Please enter the amount spent on gas on Friday:");
if (gas>10):
    over10gas = over10gas + 1;
food=input("Please enter the amount spent on food on Saturday:");
if (food>20):
    over20food = over20food + 1;
gas=input("Please enter the amount spent on gas on Saturday:");
if (gas>10):
    over10gas = over10gas + 1;
food=input("Please enter the amount spent on food on Sunday:");
if (food>20):
    over20food = over20food + 1;
gas=input("Please enter the amount spent on gas on Sunday:");
if (gas>10):
    over10gas = over10gas + 1;
print("You spent more than 20 dollars per day on food in" +str(over20food) "days of the week");
print("You spent more than 10 dollars per day on gas in" +str (over10gas));

Answer 1

您似乎在第一个打印语句中缺少“ +”。

应该是

print("You spent more than 20 dollars per day on food in" +str(over20food) + "days of the week")

Answer 2

您的尝试几乎是正确的。您仅在第一行中缺少over20food。我在下面的回答中假设您的其余代码工作正常，并且变量over10gas和int()是正确的。

此外，正如约翰·戈登（John Gordon）所指出的那样，您应将input()命令的 ALL 周围的int(input())设置为print("You spent more than 20 dollars per day on food in" + str(over20food) + "days of the week"); print("You spent more than 10 dollars per day on gas in" + str(over10gas) + "days of the week");

Winston

Answer 3

int()返回字符串。如果要将输入读取为数值，则需要对结果调用gas = int(input("Please enter the amount spent on gas on Sunday:"))，如下所示：

print()

您的+是错误的，因为在变量名和消息的其余部分之间没有$howMuch = '17шт / 119ml / 255грн'; $blocks = explode('/',$howMuch); echo $blocks[2];。

此外，摆脱那些分号。 Python不需要它们。

编写一个程序，要求用户输入一周中每一天在食品和天然气上花费的金额

3 个答案: