Question

应该在文本中找到Eric，我明白了，但有人可以向我解释'for'循环的作用吗？感谢。

/*jshint multistr:true */

text = "Blah blah blah blah blah blah Eric \
blah blah blah Eric blah blah Eric blah blah \
blah blah blah blah blah Eric";

var myName = "Eric";
var hits = [];

for(var i = 0; i < text.length; i++) {
    if (text[i] === "E") {
        for(var j = i; j < (myName.length + i); j++) {
            hits.push(text[j]);
        }
    }
}

if (hits.length === 0) {
    console.log("Your name wasn't found!");
} else {
    console.log(hits);
}

Answer 1

高级别此代码会检查每个字符，以查找字符串＆＃39; Eric＆＃39;。特别是它正在寻找角色＆＃39; E＆＃39;然后是以下3个字符。如果它找到了角色＆＃39; E＆＃39;它会将它和以下3个字符添加到输出数组

// This is defining a test string
text = "Blah blah blah blah blah blah Eric \
blah blah blah Eric blah blah Eric blah blah \
blah blah blah blah blah Eric";

// A substring to search for
var myName = "Eric";

// An output array where the target string is stored once it is found
var hits = [];

// Look at every character inside the test string
for(var i = 0; i < text.length; i++) {
    // If the character is 'E'
    if (text[i] === "E") {
        // Add the character E and the following characters up to the length of the target string to the output
        for(var j = i; j < (myName.length + i); j++) {
            hits.push(text[j]);
        }
    }
}

// If the output has elements than we have found our target string
if (hits.length === 0) {
    console.log("Your name wasn't found!");
} else {
    console.log(hits);
}

Answer 2

你的解释：

/* The \ here is used for the text going to the next line to be the same line. */

text = "Blah blah blah blah blah blah Eric \
blah blah blah Eric blah blah Eric blah blah \
blah blah blah blah blah Eric";

/* Variable Declaration of to be found. */

var myName = "Eric";
var hits = [];

/* Going through each and every character. */

for(var i = 0; i < text.length; i++) {
    /* Checking if the current character is E */
    if (text[i] === "E") {
        /* If so, start from there, and check the next character in my name, "r". */
        for(var j = i; j < (myName.length + i); j++) {
            hits.push(text[j]);
        }
    }
}

/* If this is empty, we didn't have your name in the text. */
if (hits.length === 0) {
    console.log("Your name wasn't found!");
} else {
    console.log(hits);
}

它只是检查呃我不知道为什么如果找到Er，它将返回true。哇。哦等等，第二次检查时，i和j都会递增。

Answer 3

for语句遍历text字符串（在每个字母上）：
```
for(var i = 0; i < text.length; i++)
```
如果找到一封信＆＃39; E＆＃39;：
```
if (text[i] === "E")
```
运行一个myName长for(var j = i; j < (myName.length + i); j++)的新循环来收集＆＃39; E＆＃39;之后的下一个字母：
```
hints
```

将每个字母推入hits.push(text[j]);数组：

if (hits.length === 0) {
    console.log("Your name wasn't found!");
} else {
    console.log(hits);
}

最后检查是否找到了要在控制台上显示的名称：

import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

@RunWith( MockitoJUnitRunner.class )
public class c
{

    @InjectMocks
    A a;

    @Mock
    B b;

    @Test
    public void testMethodExample()
    {
        a.methodExample();
    }
}

你能解释一下这段代码吗？

3 个答案: