C++ 错误：输入结束时应为“}”——当有一个时
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error: expected ‘}’ at end of input -- when there is one
提问by user1757575
I am getting this error when compiling:
编译时出现此错误：
project6.cpp: In function ‘int main()':
project6.cpp：在函数“int main()”中：
project6.cpp:187: error: expected ‘}' at end of input
project6.cpp:187: 错误：输入结束时应为“}”
However, there is clearly an end bracket to my int main () function at that line, so I am confused as to why I am getting this error. I also checked all of my other brackets and found none that were not closed. Any help would be much appreciated!
但是，在那行我的 int main () 函数显然有一个结束括号，所以我很困惑为什么我会收到这个错误。我还检查了我所有的其他括号，没有发现没有关闭。任何帮助将非常感激！
#include <iostream>
using namespace std;
void initRace(char grid[52][72])
{
for(int r = 0; r < 52; r = r + 1)
{ for(int c = 0; c < 72; c = c + 1)
{ grid[r][0] = 'X';
grid[0][c] = 'X';
grid[r][71] = 'X'; // border
grid[51][c] = 'X';
}
for(int c = 65; c <= 70; c = c + 1)
{ grid[51][c] = 'F'; // finish line
}
}
for(int r = 1; r <= 35; r = r + 1)
{ for(int c = 10; c <= 29; c = c + 1)
{ grid[r][c] = 'X'; // first barrier
}
}
for(int r = 16; r <= 50; r = r + 1)
{ for(int c = 40; c <=64; c = c + 1)
{ grid[r][c] = 'X'; //second barrier
}
}
for(int r = 1; r <= 50; r = r + 1)
{ for(int c =1; c <=9; c = c + 1)
{ grid[r][c] = ' '; //first block of spaces
}
}
for(int r = 36; r <= 50; r = r + 1)
{ for(int c =10; c <=29; c = c + 1)
{ grid[r][c] = ' '; //second block of spaces
}
}
for(int r = 1; r <= 50; r = r + 1)
{ for(int c =30; c <=39; c = c + 1)
{ grid[r][c] = ' '; //third block of spaces
}
}
for(int r = 1; r <= 15; r = r + 1)
{ for(int c =40; c <=64; c = c + 1)
{ grid[r][c] = ' '; //fourth block of spaces
}
}
for(int r = 1; r <= 50; r = r + 1)
{ for(int c =65; c <=70; c = c + 1)
{ grid[r][c] = ' '; //fifth block of spaces
}
}
grid[1][1] = 'O';
}
void printRace(char grid[52][72])
{ for (int i = 0 ; i < 52; i = i + 1)
{ for (int j = 0 ; j < 72; j = j + 1)
{ cout << grid[i][j] << " ";
}
cout << endl;
}
}
int main(void)
{ char grid[52][72];
initRace(grid);
int xAcceleration;
int yAcceleration;
int xVelocity = 0;
int yVelocity = 0;
int xPosition = 1;
int yPosition = 1;
for(int i = 1; i < 100; i = i + 1)
{ printRace(grid);
cout << "Horizontal and vertical acceleration (-1,0,1): ";
cin >> xAcceleration;
cin >> yAcceleration;
if((xAcceleration != 0) && (xAcceleration != 1) && (xAcceleration != -1))
{ if(i == 1)
{ cout << "Crashed after " << i << " second" << endl;
}
else
{ cout << "Crashed after " << i << " seconds" << endl;
printRace(grid);
i = 500;
}
if((yAcceleration != 0) && (yAcceleration != 1) && (yAcceleration != -1))
{ printRace(grid);
if(i == 1)
{ cout << "Crashed after " << i << " second" << endl;
}
else
{ cout << "Crashed after " << i << " seconds" << endl;
}
i = 500;
}
xVelocity = xVelocity + xAcceleration;
yVelocity = yVelocity + yAcceleration;
xPosition = xPosition + xVelocity;
yPosition = yPosition + yVelocity;
if((xPosition >= 10) && (xPosition <=29) && (yPosition >= 1) && (yPosition<= 35))
{ grid[yPosition][xPosition] = 'O';
printRace(grid);
cout << "Crashed after " << i << " seconds" << endl; // crashed into first barrier
i = 500;
}
if((xPosition >= 40) && (xPosition <= 64) && (yPosition >= 16) && (yPosition <= 50))
{ grid[yPosition][xPosition] = 'O';
printRace(grid);
cout << "Crashed after " << i << " seconds" << endl; // crashed into second barrier
i = 500;
}
if(xPosition <= 0) //crashed into left border
{ grid[yPosition][0] = 'O';
printRace(grid);
cout << "Crashed after " << i << " seconds" << endl;
i = 500;
}
if(yPosition <= 0) //crashed into top border
{ grid[0][xPosition] = 'O';
printRace(grid);
cout << "Crashed after " << i << " seconds" << endl;
i = 500;
}
if(xPosition >= 71) //crashed into right border
{ grid[yPosition][71] = 'O';
printRace(grid);
cout << "Crashed after " << i << " seconds" << endl;
i = 500;
}
if((yPosition >= 51) && (xPosition >= 1) && (xPosition <= 39)) //crashed into bottom border
{ grid[51][xPosition] = 'O';
printRace(grid);
cout << "Crashed after " << i << " seconds" << endl;
i = 500;
}
if((xPosition >= 65) && (xPosition <= 70) && (yPosition >= 51)) // crossed finish line
{ grid[51][xPosition] = 'O';
printRace(grid);
cout << "Finished after " << i << " seconds" << endl;
i = 500;
}
grid[yPosition][xPosition] = 'O';
}
return 0;
} // THIS IS LINE 187
回答by jogojapan
The first elsestatement in the big for-loop misses a closing brace.
else大 for 循环中的第一条语句遗漏了一个右大括号。
回答by Aamir
One of your else blocks does not have a closing brace... Look below:
您的 else 块之一没有右大括号...请看下面：
else
{ cout << "Crashed after " << i << " seconds" << endl;
printRace(grid);
i = 500;
Due to this, the total number of closing braces is not equal to the opening braces, hence the error.
因此，右大括号的总数不等于左大括号，因此出现错误。
回答by 0605002
The error is here:
错误在这里：
if((xAcceleration != 0) && (xAcceleration != 1) && (xAcceleration != -1))
{ if(i == 1)
{ cout << "Crashed after " << i << " second" << endl;
}
else
{ cout << "Crashed after " << i << " seconds" << endl;
printRace(grid);
i = 500;
}
The elseblock has not been closed.
该else块尚未关闭。
回答by Yogendra Singh
Add a closing brace in the section below(at marked line):
在下面的部分中添加一个右大括号（在标记行）：
if((xAcceleration != 0) && (xAcceleration != 1) && (xAcceleration != -1))
{ if(i == 1)
{
cout << "Crashed after " << i << " second" << endl;
}
else
{
cout << "Crashed after " << i << " seconds" << endl;
printRace(grid);
i = 500;
}//<-- This was missing
}
回答by selbie
You are missing a closing curly bracket } in the else clause below:
您在下面的 else 子句中缺少一个结束大括号 } ：
if((xAcceleration != 0) && (xAcceleration != 1) && (xAcceleration != -1))
{ if(i == 1)
{ cout << "Crashed after " << i << " second" << endl;
}
else
{ cout << "Crashed after " << i << " seconds" << endl;
printRace(grid);
i = 500;
}
Should be:
应该：
if((xAcceleration != 0) && (xAcceleration != 1) && (xAcceleration != -1))
{ if(i == 1)
{ cout << "Crashed after " << i << " second" << endl;
}
else
{ cout << "Crashed after " << i << " seconds" << endl;
printRace(grid);
i = 500;
}
}
回答by Works On Mine
I think this block is missing a proper ending bracket,
我认为这个块缺少一个正确的结束括号，
if((xAcceleration != 0) && (xAcceleration != 1) && (xAcceleration != -1))
{ if(i == 1)
{ cout << "Crashed after " << i << " second" << endl;
}
else
{ cout << "Crashed after " << i << " seconds" << endl;
printRace(grid);
i = 500;
}
