CS50 Pset1现金错误“期望的标识符或'（'”的含义？ [英] CS50 Pset1 Cash error "expected identifier or '('" meaning?

问题描述

#include <stdio.h>
#include <cs50.h>
#include <math.h>

int main(void)
{
    {
        float dollars;
        // prompt user for "0.00" value
        do
        {
            dollars = get_float("Change owed: ");
        }
        while(dollars <= 0);
    }
    // print amount of coins used for change
        printf("%f\n", get_change(dollars));

    int get_change(float dollars);

    {
        //calculate which coins will be used
        int cents = round(dollars * 100);
        int coins = 0;
        int denom[] = {25, 10, 5, 1};

        for (int i = 0; i < 4; i++);
        {
            coins += cents / denom[i];
            cents = cents % denom[i];
        }
        return coins;
    }
}

在CS50中执行Pset1，我完全迷失了为什么我的代码无法正常工作。获取语​​法错误

Doing Pset1 in CS50 and I'm completely lost as to why my code isn't working. Getting syntax error

cash.c：6：1：error：预期的标识符或'（'

cash.c:6:1: error: expected identifier or '('

推荐答案

您应在此行中删除; ：

for (int i = 0; i < 4; i++);

此处：

int get_change(float dollars);

将 get_change 移至文件首位或使用函数声明。

move get_change to first of file or use function declarations.

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