sprintf与segmental fault

今天第一次使用sprintf，无论怎么修改都是segmental fault，后来发现内存的原因。

#include <stdio.h>#include <stdlib.h>void main(){char *script;int lines = 1;sprintf(script, "/...path.../line.sh %d %d", lines, lines);system(script);}

erro :segmental fault

revised:

#include <stdio.h>#include <stdlib.h>void main(){    char script[100]; // Allocate as much as you need here for your string, not    int lines = 1;    // necessarily 100    sprintf(script, "/...path.../line.sh %d %d", lines, lines);    system(script);}