C语言 错误：需要一个标识符
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error: expected an identifier
提问by Caleb Lawrence
I am getting the following error using Visual Studio:
使用 Visual Studio 时出现以下错误：
41 IntelliSense: expected an identifier
41 智能感知：需要一个标识符
I have no idea what this is trying to say and any help would be appreciated! :D
我不知道这是想说什么，任何帮助将不胜感激！:D
Here is the program:
这是程序：
#include <stdio.h>
#include <math.h>
int
main(void)
{
long long d;
long long p;
//Ask for numbers of days as long as input is not between 28 and 31
do
{
printf("How may days are in your month?\n");
d = GetInt();
}
while (d<28 || d>31);
//Ask for numbers of pennies for day 1 as long as input is negative
printf("How many pennies do you have");
do
{
p = GetInt();
}
while ("p<0");
//Sum up the pennies, pennies = (pennies*2)*2..*2
int 1;
for (i=0; i<= d-1; i++);
{
p=p*pow(2,i);
}
printf("%lld\n", p);
return 0;
}`
回答by Robin Chander
int 1;
for (i=0; i<= d-1; i++);
Here you have int 1;so the compiler is looking for a variable name such as int x = 1;Now the for loop, remove that ;from the end
在这里int 1;，编译器正在寻找一个变量名，例如int x = 1;现在 for 循环，;从末尾删除它
inside the mainthe first two lines you have are
在main您拥有的前两行内
long long d;
long long p;
Here longis a type, so change those lines to
这long是一种类型，因此将这些行更改为
long d;
long p;
At the end of you file i see }', here remove the 'character
在你的文件末尾我看到}'，这里删除'字符
In addition, I can see you have while ("p<0");as the while condition, here "p<0"is a string, you might want to change it to p<0.
另外，我可以看到你有while ("p<0");while 条件，这里"p<0"是一个字符串，你可能想把它改成p<0.
回答by PhoenixWing156
You also probably want to replace
您可能还想更换
while ("p<0");
with
和
while(p<0);
(without the quotes).
（没有引号）。
