【发布时间】：2020-07-12 03:00:30
【问题描述】：
我正在尝试编写一个无法编译的程序。我不断收到的错误是这样的
预期的表达 destroyFallingStone (int map[][SIZE], int column);
它发生在我添加了 destroyFallingStone 函数并且我检查了函数和函数原型是否有任何语法错误之后。我不知道我在哪里犯了错误。
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define SIZE 15
#define EMPTY 0
#define STONE 1
// TODO: Add any extra #defines here.
// TODO: Add any extra function prototypes here.
void printMap(int map[SIZE][SIZE], int playerX);
void destroyFallingStone (int map[][SIZE], int column);
int main (void) {
// This line creates our 2D array called "map" and sets all
// of the blocks in the map to EMPTY.
int map[SIZE][SIZE] = {EMPTY};
// This line creates out playerX variable. The player starts in the
// middle of the map, at position 7.
int playerX = SIZE / 2;
printf("How many lines of stone? ");
// TODO: Scan in the number of lines of blocks.
int linesOfStone;
scanf("%d", &linesOfStone);
printf("Enter lines of stone:\n");
// TODO: Scan in the lines of blocks.
int rowPos;
int columnPos;
int stoneLength;
int stoneValue;
int i = 0;
while (i < linesOfStone) {
scanf("%d %d %d %d", &rowPos, &columnPos, &stoneLength, &stoneValue);
if ( 0 <= rowPos && rowPos < SIZE &&
0 <= columnPos && columnPos < SIZE
&& columnPos + stoneLength - 1 < SIZE) {
int j = 0;
while (j < stoneLength) {
map[rowPos][columnPos + j] = STONE;
j++;
}
}
i++;
}
printMap(map, playerX);
// TODO: Scan in commands until EOF.
// After each command is processed, you should call printMap.
int quitLoop = 0;
int playerDirection = 0;
int playerMovement = 0;
while (quitLoop != 1) {
scanf("%d %d", &playerMovement, &playerDirection);
if ( playerMovement == 1 &&
playerDirection == 1 && playerX < (SIZE - 1)) {
//check player is within bounds
playerX++;
} else if ( playerMovement == 1 &&
playerDirection == -1 && playerX > 0 ) {
playerX--;
} else if ( playerMovement == 2) { // call function for destroying stones
destroyFallingStone (int map[][SIZE], int column);
}
printMap(map, playerX);
}
return 0;
}
// Print out the contents of the map array. Then print out the player line
// which will depends on the playerX variable.
void printMap(int map[SIZE][SIZE], int playerX) {
// Print values from the map array.
int i = 0;
while (i < SIZE) {
int j = 0;
while (j < SIZE) {
printf("%d ", map[i][j]);
j++;
}
printf("\n");
i++;
}
// Print the player line.
i = 0;
while (i < playerX) {
printf(" ");
i++;
}
printf("P\n");
}
//destroys the closes 2 stones
void destroyFallingStone (int map[][SIZE], int column) {
int i = 0;
int j = 0;
while (j < 3) {
while (i < 15 && map[i][column] != STONE) { //finding the first stone
i++;
}
// if there is a stone, destroy it
if (map[i][column] == STONE) {
map[i][column] = EMPTY;
}
i++;
}
}
【问题讨论】：
-
调用函数的地方，不需要类型：
destroyFallingStone (int map[][SIZE], int column);=>destroyFallingStone (map, column);（类似于你调用printMap的方式）。
标签： c