malloc屯屯屯

#include <stdio.h>
#include <stdlib.h>int main(int argc, char **argv)
{void *p = NULL;unsigned char *s = NULL;p = malloc(100);if (!p) {return (EXIT_FAILURE);}s = (unsigned char *)p;printf("0x%02X\n", s[0]);printf("%s\n", s);printf("Windows VS2019 此处输出\n");printf("0xCD\n");printf("屯屯屯……\n");return 0;
}

烫烫烫

#include <stdio.h>int main(int argc, char** argv)
{char str1[10];//字符串故意不赋值初始化char str2[10];//也没初始化str1[8] = str1[9] = '\0';str1[0] = str1[1] = 'A';str2[0] = str2[1] = 'B';printf("str1=%s\n", str1); //输出str1=AA烫烫烫printf("str2=%s\n", str2); //输出str1=BB烫烫烫烫烫烫烫烫烫AA烫烫烫return 0;
}