100設計一甲_week13

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#include<stdio.h> void fun1(){ int i=0; printf("while test1----\n"); while(i<15){ printf("%d\n",i); i++; } i=15; printf("while test2----\n"); while(i){ printf("%d\n",i); i--; } printf("for test1----\n"); for(i=0;i<15;i++){ printf("%d\n",i); } } int main(){ int num1 = 123; float num2 = 3.14159; double num3 = 3.14159e-3; char name1[6] = {'h','e','l','l','o','\0'}; char name2[6] = "hello"; /* 字串最後必須加上結束\0字元，代表字串結束 hello 為五個字元 但最後必須加上\0，所以為六個字元。 */ printf("%d\n", num1); printf("%f\n", num2); printf("%e\n", num3); printf("%s\n", name1); printf("%s\n", name2); printf("%c\n", name1[1]); printf("%c\n", name2[1]); fun1(); return 0; }