状态机编程（去字符串中的空格）

第一次学状态机编程觉得简单了好多。

char str[128] = "   200     20   ";int argc = 0;char argv[16];void parse(void){int i = 0;int state = 0;while (str[i]){if (state == 1 && str[i] != ' '){argv[argc++] = str[i];}if (state == 1 && str[i] == ' '){state = 0;argv[argc++] = str[i];}if(state == 0 && str[i] != ' '){state = 1;argv[argc++] = str[i];}i++;}int len;len = strlen(argv);printf("len %d\n" , len);printf("%c\n",argv[len]);if(argv[len] == ' '){argv[len] = '\0';}return;}int main(void){int i = 0;parse();printf("argc = %d \n", argc);//for (i = 0; i < argc; i++)printf("%s",argv);return 0;}