JS12 -- break

a()
function a () {
	console.log('%c ', 'background:#ff0;100px;')
	let [father,son] = [7,4];
	one:for(let i=0; i<father; i++){
	    console.log('i', i)
	    if(i == 4) {
	        two:for(let j=0; j<son; j++){
	            console.log('j            ',j)
			break one;
		}
	     }
	}
	console.log('接着执行')
	console.log('%c ', 'background:#ff0;100px;')  
}

　　

i 0
i 1
i 2
i 3
i 4
j 0
接着执行

a()
function a () {
	console.log('%c ', 'background:#ff0;100px;')
	let [father,son] = [7,4];
	for(let i=0; i<father; i++){
		console.log('i', i)
		if(i == 4) {
			for(let j=0; j<son; j++){
				console.log('j            ',j);
				return;
			}
		}
	}
	console.log('接着执行')
	console.log('%c ', 'background:#ff0;100px;')
}

i 0
i 1
i 2
i 3
i 4
j 0

(不能打印 接着执行，也就不能接着执行后面的事件流)