sleep
语法
sleep(X)
参数
X 是一个非负数。
详情
暂停程序 X 毫秒。
例子
for(s in 1:10){
sleep(1000)
print(s+" seconds passed.")
};
# output
1 seconds passed.
2 seconds passed.
3 seconds passed.
4 seconds passed.
5 seconds passed.
6 seconds passed.
7 seconds passed.
8 seconds passed.
9 seconds passed.