📅  最后修改于: 2022-03-11 14:48:18.092000             🧑  作者: Mango
for (let i: number = 0; i < 5; ++i) {
let line: string = "";
for(let j: number = 0; j <= i; ++j) {
line += "*";
}
console.log(line);
}
/*Simple for loop that gives this output:
*
**
***
****
*****
*/