摘要:
1、 #include <stdio.h> int main(void) { int i; puts("please input a month."); printf("month i: "); scanf("%d",&i); if (i >= 3 && i <= 5) { printf("%d i 阅读全文
摘要:
1、else悬挂 #include <stdio.h> int main(void) { int i; puts("please input a integer."); printf("i: ");scanf("%d",&i); if (i > 0) puts("++++"); if (i == 0 阅读全文
摘要:
一、 >>> test1 = ["ccc","ddd","mmm"] >>> if test1: for i in test1: print(i) else: print("empty list") ccc ddd mmm >>> test1 = [] >>> if test1: for i in 阅读全文