帮忙看一个c语言程序。。为什么编译和链接都没报错。。却运行不了
C\u8bed\u8a00\u7f16\u7a0b\uff1a \u4e3a\u4ec0\u4e48\u7f16\u8bd1\u548c\u94fe\u63a5\u90fd\u6ca1\u6709\u95ee\u9898 \u4f46\u5c31\u662f\u8fd0\u884c\u4e0d\u51fa\u7ed3\u679c\u6700\u540e\u7684\u6253\u5370\u683c\u5f0f\u5e94\u8be5\u7528 %f\uff0c%d\u662f\u6253\u5370\u6574\u6570\u7528\u7684\u3002
f2/f1\u662f\u6574\u6570\u8fd0\u7b97\uff0c\u53ea\u4fdd\u7559\u6574\u6570\u90e8\u5206\uff0c\u6bd4\u59823/2\u7684\u7ed3\u679c\u662f1\uff0c\u800c\u4e0d\u662f1.5\uff0c\u6539\u6210\u8fd9\u4e2a\u6837\u5b50
s\uff1ds+(double)f2/(double)f1;
f2=f\uff0cf1=f2\uff0c\u7ed3\u679c\u662ff1\u548cf2\u4e00\u6837\u4e86\uff0c\u8fd9\u4e2a\u8d4b\u503c\u987a\u5e8f\u6709\u95ee\u9898\u3002
\u8fd9\u5f53\u7136\u539f\u56e0\u975e\u5e38\u591a\uff0c\u6bd4\u5982\uff1a\u7f16\u8bd1\u5668\u7f16\u8bd1\u4e0d\u591f\u4e25\u683c\u3001\u7a0b\u5e8f\u6709\u5f88\u5927\u7684\u98ce\u9669\u7b49\u7b49\uff0c\u6700\u7b80\u5355\u7684\u4e00\u4e2a\u4f8b\u5b50\u5982\u4e0b\uff1a
int a; scanf("%d",a);\u53ef\u4ee5\u786e\u5b9a\u7684\u4e00\u70b9\u662f\uff1a\u4e00\u65e6\u5728\u8fd0\u884c\u4e2d\u51fa\u73b0\u9519\u8bef\uff0c\u5927\u591a\u662f\u8f83\u4e3a\u4e25\u91cd\u7684\u9519\u8bef\uff0c\u987b\u5f15\u8d77\u91cd\u89c6\uff0c\u5426\u5219\uff0c\u4e00\u65e6\u9519\u8bef\u975e\u5e38\u4e25\u91cd\uff0c\u5fc5\u4f1a\u5bfc\u81f4\u8bb8\u591a\u4e25\u91cd\u7684\u540e\u679c\uff0c\u5982\u6b7b\u673a\u3001\u5361\u5c4f\u751a\u81f3\u76f4\u63a5\u5bfc\u81f4\u84dd\u5c4f\u3002
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
void Display(char** pa,int n)
{
int i;
for(i=0;i<n;i++)
printf("%s\t",pa[i]);
printf("\n");
}
void Selection(char** pa,int n)
{
int i,k,index;
char*temp;
for(k=0;k<n;k++)
{
index=k;
for(i=k+1;i<n;i++)
if(strcmp(pa[i],pa[index])<0)
index=i;
if(index!=k)
{
temp=pa[index];
pa[index]=pa[k];
pa[k]=temp;
}
}
}
int main()
{
char * a[10];
int i;
for(i=0;i<10;i++)
{
a[i]=malloc(sizeof(char)*20);
gets(a[i]);
}
printf("before\n");
Display(a,10);
Selection(a,10);
printf("after\n");
Display(a,10);
for(i=0;i<10;i++)
free(a[i]);
return 0;
}
char*a[10];
指针数组没有初始化，这里建议不要用指针数组。如果要使用指针数组，那么应该在后面加上：
for (int j=0;j<10;j++)
{
a[j]=new char[100];
for (int k=0;k<100;k++)
{
a[j][k]='\0';
}
}
绛旓細//杩欑绋嬪簭锛屽缓璁崟姝ヨ繍琛岋紝杩欐牱鍙互寰堟竻鏅扮殑鐪嬪埌鏁版嵁鐨勫彉鍖栥 #include <stdio.h>int main(){int i,x,y;i=x=y=0;do{++i;//寰幆涓紝绗竴娆 i 鐨勫间负 1; //绗簩娆 i 鐨勫间负 4 ;//绗笁娆 i 鐨勫间负 6; //绗笁娆 i 鐨勫间负 8;if(i%2!=0) //鍙湁 i==1鏃讹紝鎵嶆墽琛岋紝...
绛旓細flag=1;c=*(pstr+i)-48;//鍙戠幇鏁板瓧锛屽紑濮嬪線num[nc]鏀惧硷紝num[nc]=num[nc]*10+c;//姣忔鎵╁ぇ鍗佸嶅啀鍔犱笂涓涓涓綅鏁 } else {//鐜板湪鐨勫瓧姣嶄笉鏄暟瀛 if(flag==1)//濡傛灉鍒氭墠鏄暟瀛楋紝閭ｄ箞璇存槑涓娈佃繛缁殑鏁板瓧缁撴潫浜嗭紝鍗冲凡缁忓彇寰椾竴涓暣鏁 { nc++;//涓嬫爣鍚庣Щ //鍦ㄥ惁鍒欙紝灏卞彧鏄竴鑸瓧绗︿簡...
绛旓細int i,k;printf("璇疯緭鍏10涓暟涓哄悇涓厓绱犺祴鍊硷細");for(i=0;i<=9;i++) //鏁扮粍鐨勪笅鏍囨槸浠庨浂寮濮嬬殑鍟 { scanf("%d",&x[i]);} printf("\n杩10涓暟鎸夌収浠庡ぇ鍒板皬鎺掑垪椤哄簭涓猴細");for(i=0;i<9;i++) //杩欎釜鍜屼笂闈㈢殑鍘熷洜涓鏍 for(k=0;k<9;k++)if(x[k]<x[k+1]){...
绛旓細p1+2鍜宲2+1鍚岀悊 strcat鏄皢绗2涓瓧绗︿覆璺熷湪绗1涓瀛楃涓插悗闈紝鎵浠ョ粨鏋滅涓涓瀛楃涓插彉闀夸簡锛屽苟涓斿皢绗竴涓瓧绗︿覆鐨勬寚閽堜綔涓鸿繑鍥炲艰繑鍥 浣嗘槸杩欎釜绋嬪簭杩愯鐨勮瘽浼氬嚭閿欙紝鍥犱负鎵цstrcat鐨勬椂鍊欙紝p1瀹归噺涓嶅鍐嶅瓨鏀"BCD"杩欎釜瀛楃涓 鍋氫簺淇敼锛屽鏋滄妸char *p1="abcd",鏀规垚char p1[10];鐨勮瘽 杩愯浠ュ悗缁撴灉...
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绛旓細绗竴棰橈細锛1锛'0'锛2锛塻++锛3锛塩tod(a)+ctod(b)绗簩棰橈細锛1锛塿oid fun ( char *s, int *a, int *b )锛2锛++(*a);锛3锛++(*b);绗笁棰橈細float fun ( float h ){ long i=h*1000;if(i%10<5) return (i/10)/100.0;else return (i/10+1)/100.0;} ...
绛旓細鎴戣瘯杩囦綘鐨勮繖涓绋嬪簭浜嗭紝鍦ㄦ樉绀篒nput the diameter of the table :鍚庤緭鍏6涔嬶紝鍥炶溅銆傚氨浼氭樉绀轰綘鎵璇寸殑涔︿笂鐨勯偅绉嶇粨鏋滀簡銆傚鍥 濡傛灉浣犵殑涓嶈锛屾槸娌℃寜鍥炶溅鍚楋紵鎴栬呮槸鍏朵粬闂锛屽鏋滄槸杩欐牱锛屽彲鑳藉氨鏄蒋浠剁殑鍏朵粬涓浜涢棶棰樹簡锛
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