Rust语言编程例子 第008题:乘法口诀
题目:乘法口诀(也叫“九九歌”)在我国很早就已产生。远在春秋战国时代,九九歌就已经广泛地被人们利用着。常用的乘法口诀有两种,一种是45句的,通常称为小九九;还有一种是81句的,通常称为大九九。你能用Rust输出99乘法口诀(小九九)吗。输出时格式要对齐。
程序分析:可以考虑分行与列,总共 9 行 9 列,i 控制行,j 控制列。使用制表符\t分隔。
知识点:循环
fn main() { for i in 1..10 { for j in 1..=i { print!("{} * {} = {}\t", j, i, j * i) } println!(); } }
程序执行结果:
1 * 1 = 1 1 * 2 = 2 2 * 2 = 4 1 * 3 = 3 2 * 3 = 6 3 * 3 = 9 1 * 4 = 4 2 * 4 = 8 3 * 4 = 12 4 * 4 = 16 1 * 5 = 5 2 * 5 = 10 3 * 5 = 15 4 * 5 = 20 5 * 5 = 25 1 * 6 = 6 2 * 6 = 12 3 * 6 = 18 4 * 6 = 24 5 * 6 = 30 6 * 6 = 36 1 * 7 = 7 2 * 7 = 14 3 * 7 = 21 4 * 7 = 28 5 * 7 = 35 6 * 7 = 42 7 * 7 = 49 1 * 8 = 8 2 * 8 = 16 3 * 8 = 24 4 * 8 = 32 5 * 8 = 40 6 * 8 = 48 7 * 8 = 56 8 * 8 = 64 1 * 9 = 9 2 * 9 = 18 3 * 9 = 27 4 * 9 = 36 5 * 9 = 45 6 * 9 = 54 7 * 9 = 63 8 * 9 = 72 9 * 9 = 81 Process finished with exit code 0
题目:国际象棋(Chess),又称西洋棋,是一种二人对弈的棋类游戏。棋盘为正方形,由64个黑白(深色与浅色)相间的格子组成;棋子分黑白(深色与浅色)两方共32枚,每方各16枚。虽然汉语称之为西洋棋 ...