第章程序設(shè)計(jì)和C語言ppt課件

1、低級言語低級言語121212函數(shù)的名字，表示主函數(shù)函數(shù)的名字，表示主函數(shù)C程序必需有一個(gè)程序必需有一個(gè) main 函數(shù)函數(shù)主函數(shù)類型主函數(shù)類型函數(shù)體函數(shù)體輸出函數(shù)輸出函數(shù)輸出語句輸出語句換行符換行符表示注釋，是為了便于程序閱讀了解表示注釋，是為了便于程序閱讀了解所做的闡明，不可執(zhí)行所做的闡明，不可執(zhí)行用用sum的值替代的值替代希望輸出的字符希望輸出的字符int max(int x,int y) int z; if (x y) z = x; else z = y; return(z);主函數(shù)主函數(shù)max函數(shù)函數(shù)int max(int x,int y) int z; if (x y) z = x;

2、 else z = y; return(z);將將x和和y中較大者中較大者值前往給主函數(shù)值前往給主函數(shù)int max(int x,int y) int z; if (x y) z = x; else z = y; return(z);#include int main( ) int max(int x,int y); int a,b,c; scanf(%d,%d,&a,&b); c = max(a,b); printf(max=%dn,c); return 0;int max(int x,int y) int z; if (x y) z = x; else z = y; ret

3、urn(z);因因max函數(shù)的定義在函數(shù)的定義在main函數(shù)之后，需聲明函數(shù)之后，需聲明#include int main( ) int max(int x,int y); int a,b,c; scanf(%d,%d,&a,&b); c = max(a,b); printf(max=%dn,c); return 0;int max(int x,int y) int z; if (x y) z = x; else z = y; return(z);輸入函數(shù)輸入函數(shù)#include int main( ) int max(int x,int y); int a,b,c; scan

4、f(%d,%d,&a,&b); c = max(a,b); printf(max=%dn,c); return 0;int max(int x,int y) int z; if (x y) z = x; else z = y; return(z);輸入語句輸入語句#include int main( ) int max(int x,int y); int a,b,c; scanf(%d,%d,&a,&b); c = max(a,b); printf(max=%dn,c); return 0;int max(int x,int y) int z; if (x y)

5、 z = x; else z = y; return(z);輸入的數(shù)據(jù)輸入的數(shù)據(jù)放到放到a,b中中輸入格式輸入格式a的地址的地址#include int main( ) int max(int x,int y); int a,b,c; scanf(%d,%d,&a,&b); c = max(a,b); printf(max=%dn,c); return 0;int max(int x,int y) int z; if (x y) z = x; else z = y; return(z);調(diào)用調(diào)用max函數(shù)函數(shù)#include int main( ) int max(int x,

6、int y); int a,b,c; scanf(%d,%d,&a,&b); c = max(a,b); printf(max=%dn,c); return 0;int max(int x,int y) int z; if (x y) z = x; else z = y; return(z);8588#include int main( ) int max(int x,int y); int a,b,c; scanf(%d,%d,&a,&b); c = max(a,b); printf(max=%dn,c); return 0;int max(int x,int y) int z; if (x y) z = x; else z = y; return(z);8588#include int main( ) int max(int x,int y); int a,b,c; scanf(%d,%d,&a,&b); c = max(a,b); printf(max=%dn,c); return 0;int max(int x,int y) int z; if (x y) z =