在JavaScript中,可以使用循环和字符串拼接的方式来打印带*的矩形。以下是一个示例代码:
function printRectangle(width, height) {
var rectangle = '';
for (var i = 0; i < height; i++) {
for (var j = 0; j < width; j++) {
rectangle += '*';
}
rectangle += '\n';
}
console.log(rectangle);
}
printRectangle(5, 3);
上述代码中,printRectangle
函数接受两个参数,分别是矩形的宽度和高度。通过嵌套的循环,将每一行的*字符拼接到rectangle
字符串中,并在每一行结束后添加换行符\n
。最后,通过console.log
函数将拼接好的矩形字符串打印出来。
这个方法可以用于在控制台中打印任意宽度和高度的带*的矩形。
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